Rusudan (Georgian: რუსუდანი; Greek: Ρουσουδάν) was the younger daughter of King George III of Georgia and of his wife, Burdukhan (Gurandukht). Her elder sister was the famous Queen Tamar, who succeeded their father as ruler of Georgia.[1]
When Andronikos was deposed and killed, Manuel was blinded, and possibly may have died from his wounds. It is said that Rusudan fled Constantinople with her sons, taking refuge in Georgia.
While the Fourth Crusade were camped outside Constantinople between 1203 and 1204 (and would later take the city), Tamar sent Georgian troops to help Alexios and David to take control of Trebizond in April 1204. Combined with their additional conquests this became the new Empire of Trebizond.[1]
C. Toumanoff, "On the relationship between the founder of the Empire of Trebizond and the Georgian Queen Thamar" in Speculum vol. 15 (1940) pp. 299–312.