Baldwin of Ibelin year, the king betrothed his younger half-sister Isabella of Jerusalem, Balian's stepdaughter, to Humphrey IV of Toron, to further reduce the Ibelins' influence. In 1183 he supported Raymond against Guy, who was by now regent for the ailing Baldwin IV. Lord Baldwin was among the barons who advised the king to crown Sibylla's son Baldwin V in 1183, while Baldwin IV was still alive; this was an attempt to prevent Guy from succeeding as king. Baldwin V became sole king while still a child in 1185, and when the young king died in 1186, Sibylla was crowned queen with Guy
Baldwin I, Latin Emperor who interpreted and observed his crusading vows strictly, and the most popular leader in the host. With Venetian support he was elected on 9 May 1204, and crowned on 16 May in the Hagia Sophia at a ceremony which closely followed Byzantine practices. During his coronation, Baldwin wore a very rich jewel that had been bought by Byzantine Emperor Manuel I Komnenos for 62,000 silver marks. Baldwin's wife Marie, unaware of these events, had sailed to Acre. There she learned of her husband's election as emperor, but died in August 1204 before she could join him. The Latin Empire was