Henry of Flanders - in The Latin Empire

In The Latin Empire

When his elder brother, the emperor Baldwin I, was captured at the Battle of Adrianople in April 1205 by the Bulgarians, Henry was chosen regent of the empire, succeeding to the throne when the news of Baldwin’s death arrived. He was crowned 20 August 1206.

Henry was a wise ruler, whose reign was largely passed in successful struggles with Kaloyan, Tsar of Bulgaria, and with his rival, Theodore I Lascaris, emperor of Nicaea. He later fought against Boril of Bulgaria (1207–1218) and managed to defeat him the Battle of Philippopolis. Henry campaigned against the Nicean Empire, expanding a small holding in Asia Minor (at Pegai) with campaigns in 1207 (at Nicomedia) and in 1211–1212 (with the Battle of the Rhyndacus), where he captured important Nicean possessions at Nymphaion. Though Theodore I Laskaris could not oppose this later campaign, it appears that Henry decided it best to focus on his European problems, for he sought a truce with Theodore I in 1214, and amicably divided Latin from Nicean possessions to the favour of Nicea.

Domestically, Henry appears to have a different character than many of the other Crusader nobles as seen in his even-handed and pragmatic treatment of the Greeks. George Akropolites, the contemporary 13th century Greek historian, notes that Henry "though a Frank by birth, behaved graciously to the Romans who were natives of the city of Constantine, and ranked many of them among his magnates, others among his soldiers, while the common populace he treated as his own people." Indeed, when a Papal legate (Pelagio Galvani, Cardinal Bishop of Albano) arrived in Constantinople in 1213 and began to imprison Orthodox clergy and to close churches on the orders of Pope Innocent III, Henry countermanded the orders on the request of the city's Greek clergy.

Henry appears to have been brave but not cruel, and tolerant but not weak, possessing "the superior courage to oppose, in a superstitious age, the pride and avarice of the clergy." The emperor died, poisoned, it is said, by Oberto di Biandrate, ex-regent of Thessaloniki, on 11 June 1216. Gardner suggests this happened at the instigation of his Bulgarian wife Maria of Bulgaria. On his death his nephew Peter was crowned Emperor in Rome, but never arrived in Constantinople. In the years 1217 to 1219, therefore, the Latin Empire was effectively ruled by Iolanda, Henry's sister and Peter's mother, in regency.