Eustace Grenier Eustace Grenier Eustace I Garnier, also known as Eustace Grenier or Eustace Granarius (died on 15 June 1123), was lord of Caesarea from before 1110, and lord of Sidon from 1110 to his death. He was a nobleman from the County of Saint-Pol and went to the Holy Land either during the First Crusade or around 1100. He became an influential retainer of King Baldwin I of Jerusalem, who granted Caesarea and Sidon to him. After an Artuqid prince captured Baldwin I's successor, Baldwin II, Eustace was elected constable and bailliff (or regent) in April 1123. Shortly before his death,
Baldwin I of Jerusalem his homeland. The crusaders stopped at the frontier of Hungary in September. Godfrey left Baldwin in charge of his troops during his conference with Coloman, King of Hungary, regarding the conditions of the crusaders' march across the country. He agreed to hand over Baldwin, along with Baldwin's wife and retainers, as hostages to ensure their troops' good conduct. Baldwin and Godehilde were released soon after the crusaders left Hungary, and entered the Byzantine Empire in late November. The crusaders reached Constantinople on 23December 1096. The Byzantine Emperor Alexios I Komnenos demanded an oath of allegiance from their leaders and imposed