George IV of Georgia

George IV, called Lasha Giorgi (1191–1223), son of Tamar the Great and David Soslan, was made co-ruler in 1207 and ruled Georgia from 1213. He reasserted suzerainty over Ganja and in 1219 forced Erzurum and other neighbouring rulers to pay tribute.

His plans to join the Fifth Crusade ended when the first Mongol incursion into the Caucasus routed the Georgians twice in 1221–1222 and wounded him. He died of the wound in January 1223, aged thirty-one. Rusudan succeeded him; his son by a commoner later ruled as David VII.