the kingdom of armenia was ruled by the orontid (also known as yervanduni or eurandids) dynasty from 321 bc to 200 bc. the orontids (eurandids) were an armenian dynasty of probably iranian origin. around 200 bc a coup by the armenian noble family of artaxias toppled the orontid (yervanduni) dynasty, thus the artaxiad dynasty came to power. the artaxiad dynasty was been identified as a branch of the orontid (eurandid) dynasty.