 V. Langlois visited Tarsus in 1851 and confirmed this.In his words, thick walls that resembled the Roman style, windows that are narrower outside than inside, and thick columns are noticeable, but no other records exist to substantiate this claim.Medieval Mersin's most important Christian sanctuary was the Armenian cathedral of Hagia Sophia in which Leon I of the House of Rubenid was crowned by Konrad Von Wittelsbach, the Archbishop of Mainz and the representative of Pope, as the king of the Cilician Kingdom of Armenia in 1198.