Bohemund IV of Antioch

Bohemond IV
Coat of arms of Poitiers of Antioch
Prince of Antioch
Reign	1201–1216 1219–1233
Predecessor	Bohemond III Raymond-Roupen
Successor	Raymond-Roupen Bohemond V
Count of Tripoli
Reign	1187–1233
Predecessor	Raymond III
Successor	Bohemond II
Born	c. 1175
Died	March 1233 (aged 57–58)
Spouse	Plaisance Embriaco Melisende of Lusignan
Issue	Raymond Bohemond V of Antioch Philip Henry Mary
House	House of Poitiers
Father	Bohemond III of Antioch
Mother	Orgueilleuse of Harenc
Religion	Catholicism

Bohemond IV of Antioch, also known as Bohemond the One-Eyed (French: Bohémond le Borgne; c. 1175–1233), was Count of Tripoli from 1187 to 1233, and Prince of Antioch from 1201 to 1216 and from 1219 to 1233. He was the younger son of Bohemond III of Antioch. The dying Raymond III of Tripoli offered his county to Bohemond's elder brother, Raymond, but their father sent Bohemond to Tripoli in late 1187. Saladin, the Ayyubid sultan of Egypt and Syria, conquered the county, save for the capital and two fortresses, in summer 1188.

Raymond died in early 1197, leaving a posthumous son, Raymond-Roupen. Raymond-Roupen's mother, Alice, was the niece of Leo I of Cilicia who persuaded the Antiochene noblemen to acknowledge Raymond-Roupen's right to succeed his grandfather. However, the Latin and Greek burghers proclaimed Bohemond heir to his father. After his father died in April 1201, Bohemond seized Antioch with the support of the burghers, the Knights Templar and Hospitallers, and the Italian merchants.

Bohemond made an alliance with Az-Zahir Ghazi, the Ayyubid emir of Aleppo, and Kaykaus I, the Seljuq sultan of Rum, who often invaded Cilicia during the following years, to prevent Leo I from attacking Antioch. Conflicts between Bohemond and the Latin Patriarchs of Antioch enabled Raymond-Roupen to seize Antioch in 1216, but Bohemond regained the principality in 1219. After Leo I's death, Bohemond tried to secure Cilicia to his younger son, Philip, but Constantine of Baberon, who had administered Cilicia during the previous years, imprisoned Philip in 1224. Bohemond allied with Kayqubad I, sultan of Rum, but he could not prevent Philip's murder in 1225.