He instigated riots in Ganja and overran Karabakh with the help of his above named allies. Kingdom of Georgia rebelled at the same time, while King George VII of Georgia, according to historian Mirkhond, “sent his ambassadors to express his obedience and subordination to Ibrahim.” Later, in the summer of 1406, in a battle on the Kura River, they routed Umar Mirza bin Miran Shah's army, who quickly abandoned Tabriz on arrival of Shah of Shirvan, Ibrahim I who took the city in May 1406.