Mariam, the daughter of King Ashot I, promised to build 30 churches in honour of her late husband. She kept her promise throughout her life. One of them, Sevanavank, was built in 874. Founded in the 4th century, Sevanavank experienced its development in the 9th century. Apart from the two standing churches, the unique khachkar of the 17th century, with its many biblical scenes, deserves special attention. The name of the capital, Yerevan, was recorded for the first time on the dome of Sevanavank.