High Quality Content by WIKIPEDIA articles! Eutharic Cilliga (Latin: Flavius Eutharicus Cillica) was a Visigothic prince from Iberia (modern day Spain) who, during the early 6th century, served as Roman Consul and "son in arms" (filius per arma) alongside the Byzantine emperor Justin I. He was the son-in-law and presumptive heir of the Ostrogoth king Theodoric the Great but died in AD 522 at the age of 42 before he could inherit Theodoric`s title. Theodoric claimed that Eutharic was a descendant of the Gothic royal house of Amali and it was intended that his marriage to Theodoric`s daughter Amalasuintha would unite the Gothic kingdoms, establish Theodoric`s dynasty and further strengthen the Gothic hold over Italy.