Unlike some other areas of the Balkans, such as Bulgaria and Bosnia, for the first couple centuries of Ottoman rule, up until the 1500s, Islam remained confined to members of the co-opted aristocracy and a couple scattered military settlements of Yuruks from Anatolia, while the native Albanian peasantry remained overwhelmingly Christian. Even long after the fall of Skanderbeg, large regions of the Albanian countryside frequently rebelled against Ottoman rule, often incurring large human costs, including the decimation of whole villages. In the 1570s, a concerted effort by Ottoman rulers to convert the native population to Islam in order to stop the occurrence of seasonal rebellions began in Elbasan and Reka. In 1594, the Pope incited a failed rebellion among Catholic Albanians in the North, promising help from Spain. However the assistance did not come, and when the rebellion was crushed in 1596, Ottoman repression and heavy pressures to convert to Islam were implemented to punish the rebels.