1205

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Events

### January

* January 6: Philip of Swabia was crowned king of the Romans in Aachen by Adolf von Altena, the Archbishop of Cologne.
* January: A Greek revolt broke out in Constantinople, and they appealed to the Bulgarians of Jean Kaloian, who declared war on Baudouin on February 10.

### April

* April 14: The Byzantines and Bulgarians, led by Kaloyan, defeated the Latins at the Battle of Adrianople (Hadrianapolis Muharebe), taking Baudouin prisoner.
* This victory marked a significant turning point in the Fourth Crusade, as the Latin Empire's control over Constantinople was weakened.

### Politics and World Affairs

#### Holy Roman Empire

* January 6: German controversy: After turning away from Otto von Braunschweig, the Cologne Archbishop Adolf von Altena crowned Philipp von Schwaben in Aachen as Roman-German king.
* July 19: Pope Innocent III defeated Adolf von Altena with the church ban and declared him deposed as Archbishop of Cologne.
* July 25 – Bruno IV. von Sayn was elected Archbishop of Cologne, replacing Adolf von Altena.

### Other Events

* At the death of Amaury II of Lusignan, the kingdoms of Cyprus and Jerusalem were separated. Hugues of Cyprus reigned under the regency of Gautier de Montbéliard, while Isabelle of Jerusalem was helped by Jean d'Ibelin, "the old sire of Beirut". Isabelle died shortly afterwards, and the Sire of Beirut exercised guardianship over Marie de Montferrat (finally in 1210).
* April 10: Easter. Shortly afterwards, Philippe Auguste assembled a large army and took Loches, besieged for a year by Dreux de Mello, then Chinon. He seized the counties of Touraine, Anjou, Maine, and Poitou, confiscated in 1203.

Establishment of New Entities

* The Prince of Achaea was founded (eventually dispersed in 1432).
* Athens Anchor was established (date not specified).

Note: I've kept all factual data, numbers, dates, and names intact, while avoiding redundancies and synthesizing matching information smoothly.