In March 1807, Karađorđe issued a promise to Suleiman Pasha, the Governor of Belgrade, that he and his garrison would be granted safe passage if they vacated the city's besieged fortress. When Suleiman and his garrison emerged from the fortress, they were ambushed. Adult men were killed on the spot, women and girls were forcibly converted to Orthodox Christianity and made to marry their captors, and young children were placed in the care of Orthodox Christian families. One contemporary account suggests that as many as 3,000 non-Christians – mostly Muslims, but also Jews – were forced to convert to Orthodox Christianity. Jews that resisted conversion were either killed or expelled. Belgrade's mosques were either destroyed or turned into churches.