"The King Mosque (Albanian: Xhamia Mbret, Turkish: Hünkâr Camii) or Sultan Bayezid Mosque (Xhamia e Sulltan Bajazitit) is a historical mosque in Elbasan Castle, Elbasan, Albania. The mosque was built by Sultan Bayazit II around 1482-1485. This makes it the oldest active mosque in Albania. It became a Cultural Monument of Albania in 1948."
Source: en.wikipedia.org/wiki/King_Mosque,_Elbasan
A plaque above the entrance gives additional information in Albanian and English language:
Xhamia Mbretërore është një nga faltoret më të hershme të Shqipërisë, daton në vitin 1492. Kjo faltore përputhet me të gjitha xhamitë e tjera të emërtuara mbretërore që u ndërtuan nga Sulltan Bajazitit i II në fund të shekullit të XV. Xhamia u mbyll në 1967 gjatë diktaturës komuniste dhe u rihap mbas 1990.
The King's Mosque is one of the oldest religious buildings in Albania, dating from 1492. The building resembles other "king's" mosques which were built by Sultan Baiiezed Khan II at the end of the 15th century. The Mosque was closed in 1967 during the Communist dictatorship and reopened after 1990.