Nasrullah Mosque The Nasrullah Mosque and Complex is a 16th-century Ottoman mosque in Kastamonu, located at just west of the government office and north of the Gök River. The mosque was commissioned by Kadı Nasrullah, from the Ottoman Empire. The building was built in 1506 during the reign of Sultan Beyazıt II, undergoing restoration work in 1746, 1845 and 1945. The mosque has nine domes over six square columns each. The narthex, or last prayer room, has seven domes and ten columns. It also includes a fountain in the courtyard to the north of the mosque, which has two minarets on either side. During the years of the National Struggle, The National Poet Mehmet Akif Ersoy, who traveled around Anatolia and gathered support for the War of Independence, also gave a sermon in the Nasrullah Mosque and encouraged the people for the National Struggle.