The Serb population, estimated at 50,000 to 100,000 people, is largely Serbian Orthodox. Kosovo has 26 monasteries and many churches, Serb Orthodox churches and monasteries, of which three are World Heritage Sites of Serbia as Medieval Monuments in Kosovo*: the Patriarchal Monastery of Peć, Visoki Decani, Our Lady of Ljeviš, and Gračanica. Dozens of churches were destroyed, and others damaged, after the end of Serbian governance in 1999, and a further 35 were damaged in the week of the violence in March 2004.