However, the kingdom's stability and prosperity left by his father was not to last, as the Black Death swept through the area in 1348, decimating the population and producing a severe economic crisis.
[2] Despite the mentioned difficult situation, David IX was engaged in state building work.
According to the inscription of 1350 of the Tmogvi fortress, at the direction of King David, the walls of the castle were renovated.
The king also paid attention to the facts of seizure of church estates by secular feudal lords during Mongol rule.
According to Vakhushti of Kartli, King David's wife was Queen Sindukhtar, who seems to have been the sister of Agbugha, the prince of Samtskhe.