The Assyrian Prince Mor Behnam, his Sister Sara and his 40 Assyrian Horsemen (Cavalry) converted to Christianity by Mor Matay of Amid. Mor Behnam and his sister Sara are the children of the Assyrian king Senharib II.
The Syriac text on the castle walls reads: Amiro Mor Behnam w Hotheh amirto Sara bnaye d'Senharib II malko d'Othour 'am rokhobe arb'een