Isabella I was reigning Queen of Jerusalem from 1190 to her death in 1205. She was the daughter of Amalric I of Jerusalem and his second wife Maria Comnena, a Byzantine princess. Her half-brother, Baldwin IV of Jerusalem, engaged her to Humphrey IV of Toron. Her mother's second husband, Balian of Ibelin, and his stepfather, Raynald of Châtillon, were influential members of the two baronial parties. The marriage of Isabella and Humphrey was celebrated in Kerak Castle in autumn 1183. Saladin, the Ayyubid sultan of Egypt and Syria, laid siege to the fortress during the wedding, but Baldwin IV forced him to lift the siege.
Marriage of Isabella I (on the right) and Conrad of Montferrat
Marriage of Isabella and her first husband, Humphrey IV of Toron
The king or queen of Jerusalem was the supreme ruler of the Kingdom of Jerusalem, a Crusader state founded in Jerusalem by the Latin Catholic leaders of the First Crusade, when the city was conquered in 1099. Most of them were men, but there were also five queens regnant of Jerusalem, either reigning alone suo jure, or as co-rulers of husbands who reigned as kings of Jerusalem jure uxoris.
Silver coin: 10 Paoli Francesco III of Tuscany, 1747. On the front of the coin is the Latin phrase: "FRANCISCVS·D·G·R·I·S·A·G·H·REX·LOT·BAR·M·D·ETR" (François I, By the Grace of God, Emperor of the Romans, Always Augustus, King of Germany and Jerusalem, Duke of Lorraine and Bar, Grand Duke of Tuscany)
The death of Fulk, as depicted in MS of William of Tyre's Historia and Old French Continuation, painted in Acre, 13C. Bib. Nat. Française.
The marriage of Amalric I of Jerusalem and Maria Comnena at Tyre
Image: Godfroy