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John Komnenos the Fat

John Komnenos the Fat is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand John Komnenos the Fat rather than just read about it. In short: John Komnenos (Latinized as Comnenus), nicknamed "the Fat" (Greek: Ἰωάννης Κομνηνὸς ὁ παχύς, romanized: Ioannis Komninos o pahys), was a Byzantine noble who attempted to usurp the imperial throne from Alexios III Angelos in a short-lived coup in Constantinople on 31 July 1201 (or 1200). The coup drew on opposition to the ruling Angelid dynasty among rival aristocratic families and the common people, who were dissati…

John Komnenos the Fat — main illustration
John Komnenos the Fat — illustration

Key takeaways

  • John Komnenos the Fat belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect John Komnenos the Fat to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of John Komnenos the Fat from memory before moving on to harder problems.

Reference excerpt

John Komnenos (Latinized as Comnenus), nicknamed "the Fat" (Greek: Ἰωάννης Κομνηνὸς ὁ παχύς, romanized: Ioannis Komninos o pahys), was a Byzantine noble who attempted to usurp the imperial throne from Alexios III Angelos in a short-lived coup in Constantinople on 31 July 1201 (or 1200). The coup drew on opposition to the ruling Angelid dynasty among rival aristocratic families and the common people, who were dissatisfied by the dynasty's failures against external foes. John had previously been an obscure figure, but he became the figurehead of the uprising because of his imperial blood, as he was descended from the illustrious Komnenian dynasty (1081–1185). However, the real driving force behind his coup was probably the ambitious Alexios Doukas Mourtzouphlos. With the support of the capital's populace, the plotters managed to seize most of the Great Palace in Constantinople's southeastern corner, which the mob proceeded to loot, and John Komnenos was crowned in the Hagia Sophia. Alexios III, however, was secure in his residence in the northwestern Palace of Blachernae, and he sent forces by sea to land in the part of the Great Palace still held by the loyal Varangian Guard. Most of the urban mob dispersed for the night, and the Varangians had little difficulty in suppressing the coup. John Komnenos was captured and executed with many of his followers.

Origin and political background

John was ultimately of Greek and Turkish ancestry descending from both the Komnenoi and the Axouch. His father was the distinguished protostrator Alexios Axouch. The Axouchoi were a family of Turkish origin closely associated with the Komnenian dynasty and provided a number of distinguished generals. The two families also intermarried: John's mother Maria was the daughter of Alexios Komnenos, eldest son and co-emperor of Emperor John II Komnenos (r. 1118–1143). John was thus able to claim a pedigree comparable, if not superior, to the reigning Angeloi, albeit from the maternal side. The reign of Alexios III Angelos (r. 1195–1203) had been troubled from the outset: the aristocracy conspired against him, his pressing demand for new sources of revenue was blocked by the refusal of Senate, clergy and merchants to contribute, while the lower and middle classes of the imperial capital frequently displayed their discontent with riots against corrupt officials. The most notable of these was a large-scale uprising in February 1200 against the warden of the praetorium, Constantinople's chief prison, John Lagos, which was bloodily suppressed by imperial troops. John Komnenos was a rather unimportant figure in the court, and in a marginal note dating to the late 13th century, Alexios Doukas Mourtzouphlos, who briefly became emperor during Constantinople's final siege by the Fourth Crusade, was named as the real mastermind behind the coup. He was certainly supported by a wider circle of nobles from the Komnenian era, possibly even the brothers Alexios Komnenos and David Komnenos, who later founded the Empire of Trebizond (1204–1461). Thus the historian Michael Angold traces the coup's inception to the events of early 1199, when Alexios III married his two daughters Irene and Anna to the young noblemen Alexios Palaiologos and Theodore Laskaris respectively. This marriage not only spoke of increasing confidence for the Emperor, but also provided for the imperial succession and began the establishment of a separate aristocratic power-base, which must have displeased many noble families. However, the revolt was also fuelled by a general feeling of discontent and humiliation at the failures of the Angeloi, especially in terms of foreign policy. This much is evident from the — albeit embellished — account of the eyewitness Nicholas Mesarites, whereby John Komnenos's supporters proclaimed that henceforth everything would go well for Romania, that her enemies would be vanquished, and that the kings of all the earth would come to pay homage to Constantinople.

Coup

… excerpt ends here. Continue reading the full article.

Illustrations

John Komnenos the Fat illustration
John Komnenos the Fat: Alexios Doukas Mourtzouphlos, the probable mastermind behind John Komnenos' coup
Alexios Doukas Mourtzouphlos, the probable mastermind behind John Komnenos' coup
John Komnenos the Fat: Map of Byzantine Constantinople
Map of Byzantine Constantinople

Worked examples

Example 1 — a first encounter with John Komnenos the Fat

Start with the simplest possible case. Write down what John Komnenos the Fat claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to John Komnenos the Fat before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about John Komnenos the Fat ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of John Komnenos the Fat

In research
John Komnenos the Fat appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses John Komnenos the Fat in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
John Komnenos the Fat is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1201 deaths, 12th-century Byzantine people, 13th-century Byzantine people, so understanding it makes those chapters shorter.
In everyday life
Look for John Komnenos the Fat outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study John Komnenos the Fat in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what John Komnenos the Fat means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain John Komnenos the Fat out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is John Komnenos the Fat in simple terms?

John Komnenos (Latinized as Comnenus), nicknamed "the Fat" (Greek: Ἰωάννης Κομνηνὸς ὁ παχύς, romanized: Ioannis Komninos o pahys), was a Byzantine noble who attempted to usurp the imperial throne from Alexios III Angelos in a short-lived coup in Constantinople on 31 July 1201 (or 1200). The coup dr…

Why does John Komnenos the Fat matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study John Komnenos the Fat?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on John Komnenos the Fat.

Tags

  • 1201 deaths
  • 12th-century Byzantine people
  • 13th-century Byzantine people
  • 13th-century executions
  • 13th-century rebels
  • Axouch family
  • Byzantine usurpers
  • Executed Byzantine people
  • Hagia Sophia
  • People executed by the Byzantine Empire

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