When he arrived in Bulgaria, Andrew was detained until he "gave full surety that his daughter would be united in marriage" to Ivan Asen II of Bulgaria, according to Thomas the Archdeacon.
Ketika ia tiba di Bulgaria, András ditahan sampai ia "memberi jaminan penuh bahwa putrinya akan dinikahkan" dengan Ivan Asen II dari Bulgaria, menurut Tomas Arkodiakonus.