Several contemporary prominent Armenians, including Grigor-Derenik Vaspurakan, insisted on Ashot's coronation. Ashot was crowned King of Armenia through the consent of Caliph al-Mu'tamid in 885 to prevent intrusion into Armenian territory by Basil I, a Byzantine emperor of Armenian origin. As a result of his coronation, Ashot restored the Armenian monarchy and became the founder of the medieval Kingdom of Armenia, also known as Bagratid Armenia, named after the contemporary rule of the Bagratunis. The Bagratid kingdom lasted until 1045, when it was annexed into the Byzantine Empire.