vargalor

Gagik I ,prince of Vaspurakan,began his reign @ 908 A.D. He married a Mlk'e daughter of Grigor,aka AbouHamza son of Vasak.This abouHamza gave Gagik some trouble and Gagik marched against him. Thomas Artshruni's history states that AbouHamza was holed up in his lair at the castle called Archuchk. Who is Vasak and what family does he belong to and where is Archuchk located? Regards Loren Varga