After the Danish Reformation, involving the suppression of the Catholic bishopric in 1536, the city enjoyed a sustained period of prosperity from the 1530s to the mid-17th century, becoming northern Funen's commercial centre. One of the main sources of income was the sale of cattle, providing substantial funds for the construction of fine half-timbered houses for the local merchants. The local nobility also participated in the city's development by building residences where they spent the winter months. But the city's prosperity came to an abrupt end in the late 1650s heavy taxes were imposed after the end of the Swedish Wars. A period of stagnation ensued until the end of the 18th century.