During
Mongol invasion of Georgia in 1238-39 Queen
Rusudan had to evacuate
Tbilisi for
Kutaisi, leaving eastern Georgia in the hands of
atabeg Avag Mkhargrdzeli and Kakhetian lord, Egarslan Bakurtsikheli. The Mongol general Toghta was sent by
Chaghatai to assault Avag's troops at the fortress of
Kayan. After some resistance, Avag surrendered, and had to agree to pay tribute to the Mongols, and to provide let his troops join the Mongol army. triggering the surrender of may more nobles in the rest of the campaign. The combined troops went on to
Ani, the Armenian capital defended by
Shahnshah Zakarian, but the city was eventually captured and destroyed. first rock-cut church, built under Avag during the
Zakarid period, circa 1240. Avag Mkhargrdzeli, who was raised by Queen Rusudan from the rank of
spasalar to
amirspasalar (Lord High Constable), and then to that of
atabeg (tutor) arranged the submission of Queen Rusudan to the
Mongols in 1243, and Georgia officially acknowledged the
Great Khan as its overlord. During this period of
interregnum (1245–1250), with the two Davids absent at the court of the Great Khan in
Karakorum, the Mongols divided the Kingdom of Georgia into eight districts (
tumen), one of them commanded by Avag Mkhargrdzeli. Exploiting the complicated issue of succession on Georgian throne, the Mongols had the Georgian nobles divided into two rival parties, each of which advocated their own candidate to the crown, where Avag was supporting candidacy of
David Narin.
David VII of Georgia visited the estates of atabag Avag when he died, leaving no son behind, but only a daughter by the name of Khuashak/
Khoshak. The King came to the funeral in
Bjni and noticed the good-looking widow of Avag,
Gvantsa. He fell in love with her and a little time later took her as his wife and Queen, and brought her to his kingdom. And he left Avag's daughter to govern her estate, entrusting her to the supervision of
Sadun of Mankaberdi. Khoshak eventually married
Shams al-Din Juvayni, who was
vizier in the service of the Mongols.
Matosavank monastery was constructed with the oversight of Avag. He also built the "Rock-cut church with spring" c.1240 in the
Geghard Monastery. The
Kirants Monastery was also probably founded by Avag, who was a of
Chalcedonian faith like his father. The frescoes of the monastery can be dated to the 1230s-1240s. monastery. ==References==