Lesson Plan: The Holy League

Suitable for: AP World History, AP US Government, AP European History, IB History HL, undergraduate International Relations, undergraduate Middle East Studies, undergraduate Early Modern European History Recommended length: 60–90 minutes (single class) or two 45-minute sessions Companion story: The Holy League — Time Rhymes, published 16 May 2026 Companion video: youtube.com/@TheTimeRhymes (long-form; short-form on Shorts)

---

Learning objectives

By the end of this lesson students will be able to:

1. Describe the formation of the Holy League of 1684 and the diplomatic role of Pope Innocent XI as a convening third party across confessional lines.

1. Identify the structural features of the Holy League's binding instrument (the exclusivity clause) and explain how those features distinguish collective-security commitments from bilateral normalisation agreements.

1. Trace the fifteen-year arc from the relief of Vienna in 1683 to the Treaty of Karlowitz in 1699, and quantify the territorial transfer involved.

1. Apply the Holy League framework to the Abraham Accords (signed 15 September 2020) and the May 2026 Israeli-Emirati-American coalition against Iran, evaluating both the structural similarities and the formal differences.

1. Distinguish between informal coalition exclusivity (which arises from the joint operational situation) and formal treaty exclusivity (which is written into the binding instrument), and explain why this distinction matters for the durability of multi-power coalitions.

---

Pre-class preparation (homework)

Assign the following reading and viewing in advance:

• The Holy League (Time Rhymes story, ~9-minute read; audio version available).

• Time Rhymes long-form video (~10 minutes).

• One of the following primary or near-primary sources, depending on level:

Have students arrive prepared to answer one written prompt (200–300 words): What is the structural similarity between the Holy League of 1684 and the Abraham Accords of 2020, and what is the structural difference?

---

Class outline

Part 1 — Anchor in the present (10 minutes)

Open with the 15 May 2026 facts on the board, without commentary:

• IDF chief Lt Gen Eyal Zamir received in Abu Dhabi by Sheikh Mohammed bin Zayed.

• Shin Bet and Mossad chiefs reported to have visited UAE during the Iran war.

• Iron Dome batteries and Israeli air-defence personnel deployed to UAE territory in early May 2026.

• UAE foreign ministry response: relations with Israel are "public and conducted within the framework of the Abraham Accords."

• Iran foreign ministry response: the visit, once disclosed, was "unforgivable."

• Abraham Accords signed at the White House on 15 September 2020.

Ask students: Is this a coalition? If so, what kind? Capture the spread of views (treaty alliance, ad hoc coordination, informal partnership, normalisation framework). Do not resolve the disagreement; flag the question to return to at the end of class.

Part 2 — The 1683 anchor (15 minutes)

Walk the class through the basic facts of the relief of Vienna:

• The Ottoman siege of Vienna, July–September 1683 (Grand Vizier Kara Mustafa Pasha, Ottoman army of well over a hundred thousand, imperial garrison of around fifteen thousand under Starhemberg).

• The Battle of Kahlenberg, 12 September 1683 (Polish king John III Sobieski commanding a relief force of approximately seventy thousand including Saxon and Bavarian contingents; Habsburg Emperor Leopold I observing from Passau).

• The political consequence: a regional power in retreat, but no coalition yet capable of converting retreat into reversal.

Whiteboard prompt: Why was a single battlefield victory insufficient? Why did the Christian powers need a coalition to follow it up?

Anticipated answers:

• Each power had its own quarrel and its own treaty calendar with the Ottomans.

• None individually had the military mass to sustain a fifteen-year offensive.

• Any one of them could be bought off with a separate peace, leaving the others exposed.

Part 3 — The instrument (20 minutes)

This is the structural core of the lesson. Introduce Pope Innocent XI as a convening third party — a non-combatant power with the moral authority, the financial reserves (he had spent five years borrowing from Italian bankers and the Habsburg treasury to fund the relief), and the diplomatic distance to broker a treaty no Christian sovereign could broker himself.

Walk through the formation of the Holy League:

• The signing at Linz on 5 March 1684 (Habsburg Monarchy, Polish-Lithuanian Commonwealth, Republic of Venice).

• The Pope's personal swearing-in of signatories at Rome on 24 May 1684.

• Russia's accession on 26 April 1686 (Tsarine Sophia as regent for Ivan V and Peter the Great, contingent on a perpetual peace with Poland that ceded Kiev to Moscow).

Then introduce the load-bearing detail: the exclusivity clause. The Holy League's treaty bound its members to make war on the Ottoman Empire together until all of them made peace together. No member could conclude a separate peace, even on advantageous terms, without the others.

Class discussion prompt:

• Why was the exclusivity clause the load-bearing detail? What does it do that a simple coalition declaration cannot do?

• What is the difference between a coalition and an alliance? Is the Holy League one or the other?

Anticipated answers:

• Exclusivity removes the most attractive option for the regionally dominant power (the Ottomans): peeling members off the coalition one at a time with separate inducements.

• The clause converts each member's leverage into shared leverage. A small power inside an exclusivity coalition can punch above its weight; the same small power outside such a coalition can be picked off.

• An alliance binds parties; a coalition coordinates them. The Holy League was structured as an alliance with a sunset condition (peace together) rather than as an open-ended treaty.

Part 4 — The fifteen-year arc (10 minutes)

Present the military results of the Holy League in chronological order, with a focus on the cumulative reversal:

| Year | Event | Significance | |------|-------|--------------| | 1687 | Second Battle of Mohács (Charles V of Lorraine) | Same site where Süleyman had broken Hungary in 1526; reversal of 161 years | | 1688 | Belgrade falls to Habsburg army | Major Danube fortress | | 1691 | Battle of Slankamen (Ludwig William of Baden-Baden) | Ottoman Grand Vizier killed | | 1697 | Battle of Zenta (Prince Eugene of Savoy, age 33) | 30,000 Ottoman dead, 400 imperial losses, Grand Vizier killed | | 1699 | Treaty of Karlowitz | First substantial Ottoman territorial loss in Europe in 350 years |

Karlowitz transferred most of Hungary, all of Transylvania (which became an Austrian principality), Slavonia, Croatia, the Peloponnese, and significant parts of Dalmatia. The Ottoman Empire would survive until 1922, but its European expansion ended permanently in 1699.

Discussion prompt: Pope Innocent XI died in 1689, six years after the relief of Vienna and ten years before Karlowitz. Did he get what he wanted?

This is a question about how to measure success in long-arc diplomacy. Some students will say yes (the trajectory was set, the instrument was working). Some will say no (he never lived to see the territorial transfer). Both are defensible. Use the question to introduce the idea that the convener's job is to assemble the instrument, not necessarily to harvest the result.

Part 5 — The 2026 application (15 minutes)

Return to the opening prompt. Map the Holy League framework onto the 2026 situation, but rigorously, not loosely. Have students fill in this table on their own (or in pairs) before class discussion:

| Feature | Holy League 1684 | 2026 Coalition | |---------|------------------|----------------| | Convening third party | Pope Innocent XI | President Trump (Abraham Accords broker) | | Regional power being countered | Ottoman Empire | Islamic Republic of Iran | | Constituent members | Habsburg Monarchy, Poland-Lithuania, Venice, Russia (1686) | Israel, UAE, Bahrain, Sudan, Morocco (Accords); United States as backstop | | Confessional spread | Catholic and Orthodox | Jewish, Sunni Muslim, Christian | | Binding instrument | Treaty with formal exclusivity clause | Bilateral normalisation agreements without exclusivity clause | | Initial trigger | Relief of Vienna 1683 | Operation Roaring Lion June 2025 (start of Iran war) | | Duration to first major treaty | 15 years (1684–1699) | TBD | | Operational manifestation | Coordinated multi-theatre war 1684–1699 | Iron Dome on UAE territory; IDF/Shin Bet/Mossad chief visits; joint US-Israel operations |

Then the central question of the lesson:

The Abraham Accords as written are bilateral normalisation agreements, not collective-security commitments. They do not contain an exclusivity clause. Yet the 2026 coalition is operating as if exclusivity were in force — none of the participants can sign a separate peace with Tehran without losing the others. How is this possible?

Anticipated answers:

• The operational situation creates de facto exclusivity even when the legal instrument does not require it. The cost of a separate peace is collective abandonment.

• The convening third party (the US) is supplying the binding force that the treaty does not. American security guarantees substitute for the exclusivity clause.

• The 2026 coalition is at year 5.5 of an undetermined arc. The instrument may yet be formalised.

This is a sophisticated political-science question. There is no single correct answer. Use it to introduce the distinction between formal and informal alliance commitments and the conditions under which informal commitments outperform their legal text.

Part 6 — The Karlowitz arithmetic (10 minutes, optional advanced)

For advanced classes, close with a forecasting exercise.

The Holy League took 15 years from formation to Karlowitz. The Abraham Accords are 5.5 years old. The Iran war is in its third year. If the Karlowitz arithmetic held — and it may not — what would year 15 of the Abraham Accords look like?

This is a question about the limits of historical analogy. Press students on it:

• What is the equivalent of "Karlowitz" in the modern context? A regime change in Tehran? A treaty? A long-running ceasefire?

• What forces in the 2026 setting do not exist in the 1684 setting? (Nuclear weapons, oil markets, satellite reconnaissance, the United Nations, the global commodity trade.)

• What forces in the 1684 setting do not exist in the 2026 setting? (Total Ottoman territorial control over the Hungarian plain; no third party more powerful than the Pope; no commodity transmission mechanism for war finance.)

The goal is not to extract a prediction. The goal is to teach students that the structural framework can illuminate without dictating, and that the differences between 1684 and 2026 are as important as the similarities.

---

Assessment

Short answer (15 minutes)

Choose two of the following:

1. Explain the exclusivity clause in the Holy League treaty and identify one specific feature of the Abraham Accords that substitutes for it in functional terms.

1. The historian Norman Stone wrote that 1683 was the Ottoman Empire's high-water mark, but it took until 1699 for the reversal to become permanent. Describe the institutional reason for this gap.

1. Pope Innocent XI is sometimes called the "savior of Christendom" and sometimes described as merely a competent treaty broker. Which framing is more accurate, and what evidence supports your choice?

1. The Holy League included Catholic and Orthodox powers. The Abraham Accords include Jewish, Sunni Muslim, and Christian powers. What is the role of confessional pluralism in each coalition, and is it incidental or structural?

Essay (assign as take-home, 1,500 words)

Compare the role of the convening third party in the Holy League of 1684 and the Abraham Accords of 2020. Pope Innocent XI lived in Rome. Donald Trump was the President of the United States. What is the same about their role, and what is different? Your answer should consider: (a) the source of moral and material authority, (b) the binding instruments they chose, (c) the time horizons of each coalition, and (d) the role of the convening party after the instrument is signed.

---

Source materials and further reading

Primary and near-primary sources

• Treaty of Karlowitz (1699): English-language summaries available in Britannica and standard reference works.

• The Abraham Accords Declaration (15 September 2020): US State Department archive.

• 15 May 2026 Kan public broadcaster report on Lt Gen Zamir's UAE visit (linked in the story's evidence manifest).

• UAE Ministry of Foreign Affairs statement on the Zamir visit (linked in the evidence manifest).

• Iranian Ministry of Foreign Affairs response to the Zamir visit (linked in the evidence manifest).

Secondary reading

• John Stoye, The Siege of Vienna (Birlinn, 2007) — single-volume narrative history of 1683.

• Andrew Wheatcroft, The Enemy at the Gate: Habsburgs, Ottomans and the Battle for Europe (Basic Books, 2009) — broader Habsburg-Ottoman context with strong coverage of the Holy League.

• Brendan Simms, Britain's Europe: A Thousand Years of Conflict and Cooperation (Allen Lane, 2016), Chapter 3 — the European balance-of-power framework as a tool for analysing modern coalitions.

• Walter Russell Mead, "The New Concert of Powers" (Foreign Affairs, 2014) — application of early-modern coalition theory to the twenty-first century.

Online resources

• Time Rhymes evidence manifest for this story: links to all 22 verified claims with primary sources.

• Map of the Holy League's territorial gains 1683–1699: any standard Habsburg or Ottoman historical atlas.

---

Time Rhymes attribution

This lesson plan is built around the Time Rhymes story The Holy League, published 16 May 2026. The story is freely available at timerhymes.xyz. The companion long-form video and Shorts are at youtube.com/@TheTimeRhymes. The full evidence manifest, with sources for every factual claim in the story, is linked from the YouTube description and from the story page on the Time Rhymes website.

Time Rhymes publishes a new historical-parallel story every day. If your students enjoyed this one, suggest they subscribe to receive tomorrow's.