Alexios III Angelos, Latinized as Alexius III Angelus, was Byzantine Emperor from March 1195 to 17/18 July 1203. He reigned under the name Alexios Komnenos associating himself with the Komnenos dynasty.
The 1200s began on January 1, 1200, and ended on December 31, 1209.
Year 1205 (MCCV) was a common year starting on Saturday of the Julian calendar.
Isaac II Angelos or Angelus was Byzantine Emperor from 1185 to 1195, and co-Emperor with his son Alexios IV Angelos from 1203 to 1204. In a 1185 revolt against the Emperor Andronikos Komnenos, Isaac seized power and rose to the Byzantine throne, establishing the Angelos family as the new imperial dynasty.
Theodore I Laskaris or Lascaris was the first emperor of Nicaea—a successor state of the Byzantine Empire—from 1205 to his death. Although he was born to an obscure aristocratic family, his mother was related to the imperial Komnenos clan. He married Anna, a younger daughter of Emperor Alexios III Angelos in 1200. He received the title of despot before 1203, demonstrating his right to succeed his father-in-law on the throne.
Henry was Latin emperor of Constantinople from 1205 until his death in 1216. He was one of the leaders of the Fourth Crusade in which the Byzantine Empire was conquered and Latin Empire formed.
The Latin Empire, also referred to as the Latin Empire of Constantinople, was a feudal Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire. The Latin Empire was intended to replace the Byzantine Empire as the Western-recognized Roman Empire in the east, with a Catholic emperor enthroned in place of the Eastern Orthodox Roman emperors. The main objective to form a Latin Empire was planned over the course of the Fourth Crusade, promoted by crusade leaders such as Boniface of Montferrat, as well as the Republic of Venice.
Boniface I, usually known as Boniface of Montferrat, was the ninth Marquis of Montferrat, a leader of the Fourth Crusade (1201–04) and the king of Thessalonica.
Theodore Branas or Vranas, sometimes called Theodore Komnenos Branas, was a general under the Byzantine Empire and afterwards under the Latin Empire of Constantinople. Under the Latin regime he was given the title Caesar and in 1206 he became governor and lord of Adrianople. He is called Livernas by western chroniclers of the Fourth Crusade, including Geoffroi de Villehardouin.
The Kingdom of Thessalonica was a short-lived Crusader State founded after the Fourth Crusade over conquered Byzantine lands in today's territory of Northern Greece and Thessaly.
AlexiosBranas or Vranas was a Byzantine nobleman, attempted usurper, and the last Byzantine military leader of the 12th century to gain a notable success against a foreign enemy.
Margaret of Hungary was a Byzantine Empress by marriage to Isaac II Angelos and Queen of Thessalonica by marriage to Boniface of Montferrat. She was regent of Thessalonica during the minority of her son Demetrius of Montferrat in 1207–1216.
The Duchy of Philippopolis was a short-lived duchy of the Latin Empire founded after the collapse and partition of the Byzantine Empire by the Fourth Crusade in 1204. It included the city of Philippopolis and the surrounding region.
Marie of Brienne was Latin Empress as the wife of Baldwin II of Courtenay. She served as regent during the absence of Baldwin II twice: in 1237–1239, and in 1243–1257.
The Battle of the Rhyndacus was fought on 15 October 1211 between the forces of two of the main successor states of the Byzantine Empire, the Latin Empire and the Byzantine Greek Empire of Nicaea, established following the dissolution of the Byzantine state after the Fourth Crusade.
The Battle of Poimanenon or Poemanenum was fought in early 1224 between the forces of the two main successor states of the Byzantine Empire; the Latin Empire and the Byzantine Greek Empire of Nicaea. The opposing forces met at Poimanenon, south of Cyzicus in Mysia, near Lake Kuş.
Isaac Laskaris was a brother of Nicaean emperor Theodore I Laskaris, who along with his brother Alexios Laskaris fled to the Latin Empire and unsuccessfully tried to topple Theodore's successor, John III Doukas Vatatzes, in 1224.
Alexios Laskaris was a brother of Nicaean emperor Theodore I Laskaris, who along with his brother Isaac Laskaris fled to the Latin Empire and unsuccessfully tried to topple Theodore's successor, John III Doukas Vatatzes, in 1224.
Berthold II von Katzenelnbogen was a German nobleman of the family of the Counts of Katzenelnbogen and a participant in the Fourth Crusade (1202–04), who became lord of Velestino (c.1205–17) and regent of the Kingdom of Thessalonica (c.1217) in Frankish Greece. He was a patron of poets and in politics a Ghibelline.
The Podestà of Constantinople was the official in charge of Venetian possessions in the Latin Empire and the Venetian quarter of Constantinople during the 13th century. Nominally a vassal to the Latin Emperor, the Podestà functioned as a ruler in his own right, and answered to the Doge of Venice. The Podestà was also officially known as Governor of One-Fourth and One-Half of the Empire of Romania and was entitled to wearing the crimson buskins as the emperors.
