Bohemund IV of Antioch (d.1233), also know as the One-Eyed, was ruler of the principality of Antioch (a crusader state) between 1201 and 1216, and again from 1219 until his death. He was also count of Tripoli from 1187. Events Fortress of Kalan built. ... The Principality of Antioch, including parts of modern-day Turkey and Syria, was one of the crusader states created during the First Crusade. ... The Crusader states, c. ... Armenian Cilicia and Crusader States The County of Tripoli was the last of the four major Crusader states in the Levant to be created. ...

Bohemund IV was the son of Bohemund III of Antioch by his second wife Orguilleuse. The first part of his rule was marked by internal dynastic conflicts. Bohemund III had grandson, Raymond-Roupen of Antioch, from his eldest son Raymond of Antioch, who was considered by many as the rightful heir to Antioch. Despite the fact that Raymond-Roupen was excluded from the succession, Bohemund IV lost the principality to his nephew, supported by Leo II of Armenia, between 1216 and 1219. Bohemund III of Antioch (1144-1201), also know as the Stammerer, was ruler of the principality of Antioch (a crusader state) from 1163 to his death. ... Raymond-Roupen of Antioch (d. ... Leo II of Armenia, (Armenian: Levon II) known as The Magnificent (1150 – May 5, 1219) was king of the Armenian Kingdom of Cilicia, ruling from 1187–1219. ...

Bohemund proved to be an erractic ally, changing his vows of fidelity in whichever way he considered the best interest for his principality. An example was first the alliance then desertion of the troops of Frederick II Hohenstauffen, during the Sixth Crusade of 1228/1229. He was also a fierceful enemy of the Knights Hospitaller and due to this he was excommunicated in 1230 by Pope Gregory IX. Frederick II (left) meets al-Kamil (right). ... The Sixth Crusade began in 1228 as an attempt to reconquer Jerusalem. ... The Knights Hospitaller (the or Knights of Malta or Knights of Rhodes) is a tradition which began as a Benedictine nursing Order founded in the 11th century based in the Holy Land, but soon became a militant Christian Chivalric Order under its own charter, and was charged with the care... Excommunication is religious censure which is used to deprive or suspend membership in a religious community. ... Events Kingdom of Leon unites with the Kingdom of Castile. ... Gregory IX, né Ugolino di Conti ( 1143–August 22, 1241), pope from 1227 to 1241, the successor of Honorius III, fully inherited the traditions of Gregory VII and of his uncle Innocent III, and zealously continued their policy of Papal supremacy. ...

Bohemund married Plaisance of Gibelet and had at least three sons: Henry of Antioch (father of king Hugh III of Cyprus and I of Jerusalem), Philip of Antioch, who married Isabella of Armenia, and Bohemund, who succeeded him. Hugh of Antioch of the family of Poitiers-Aquitaine, Hugh I of Jerusalem (Hugh III of Cyprus) (died March 24, 1284), was the son of Isabella of Cyprus (daughter of Hugh I of Cyprus) and Henry of Antioch. ... There have been several women known as Isabella (or Zabel) of Armenia. ... Bohemund V of Antioch (d. ...