The 1428 attempt by German Jews to acquire rooms and buildings on Mount Zion over the Tomb of David had dire consequences. The Franciscans, who had occupied the site since 1335, petitioned Pope Martin V who issued a papal order prohibiting sea captains from carrying Jews to Palestine. In 1438, Italian rabbi Elijah of Ferrara settled in Jerusalem and became a lecturer and dayyan. In 1455, a large group of prospective emigrants from across Sicily were arrested for attempting to sail to Palestine. Not wanting to forfeit revenue made from special Jewish taxes, the authorities were against the mass emigration of Jews and accused the group of planning to illegally smuggle gold off the island. After nine months of imprisonment, a heavy ransom freed 24 Jews who were then granted permission to travel to Palestine so long as they abandoned all their property.