Boniface I, Marquess of Montferrat the independent city communes of the Lombard League. Boniface's eldest brother, William, had died in 1177, soon after marrying Sibylla, the heiress presumptive to the Kingdom of Jerusalem. In 1179, the Byzantine emperor Manuel I Comnenus offered his daughter Maria Porphyrogenita as a bride to one of the sons of William V. Since Boniface, like his older brother Conrad, was already married, and Frederick was a priest, the youngest brother, Renier, married her instead, only to be murdered along with her during the usurpation of Andronicus. In 1183, Boniface's nephew Baldwin V was crowned co-king of Jerusalem. William V went
Baldwin I of Jerusalem Christian (mainly Armenian) peasants should be transferred to the lands west of the Euphrates, because the Seljuq rulers had frequently raided the eastern regions. While the peasants were gathering at a ferry on the river, Mawdud made a sudden raid and massacred most of them. Sigurd I of Norwaythe first king to visit the Kingdom of Jerusalemhad meanwhile landed at Acre. Baldwin made an alliance with him and they laid siege to Sidon in October 1110. An Egyptian fleet routed the Norwegians, but the Doge of Venice, Ordelafo Faliero, and his fleet soon joined the crusaders and the town capitulated