Home ยป Rumeli Hissar Castle . It was built by Sultan Mehmed II between 1451 and 1452 before the Conquest of Constantinople (Ist…Rumeli Hissar Castle . It was built by Sultan Mehmed II between 1451 and 1452 before the Conquest of Constantinople (Ist…by adminiSeptember 4, 2023Rumeli Hissar Castle ๐ฐ. It was built by Sultan Mehmed II between 1451 and 1452 before the Conquest of Constantinople (Istanbul).๐ก Tags:BuiltcastleconquestConstantinopleHissarIst..MehmedRumeliSultan