Sultan Alaeddin Mosque

The Sultan Alaeddin Mosque stands at the entrance of the Inner Citadel (İç Kale) in Ankara. It is described in the sources as the oldest mosque in the city. It was built in the Seljuk period together with a Seljuk palace, which lies to its west. Its wooden minbar, made in a false kündekari technique using nails, along with the last-congregation porch on the north side and the women's gallery above it, gives the building significance in art history. The mosque is known by the name Alaeddin among the public and in the sources, though some references also call it the Muradiye Mosque.

The mosque was commissioned in the 12th century by Muhyiddin Mesud, a son of Kilij Arslan II who ruled in Ankara as a Seljuk prince, and was built together with a palace.

It was repaired under Alaeddin Keykubad II, and the name Alaeddin derives from that restoration. It was repaired again under the Ottoman sultan Murad II, which is why some sources refer to it as the Muradiye Mosque. Even so, the name Alaeddin has never fallen out of use, either among the public or in the sources.