Sigismund (; died 524 AD) was King of the Burgundians from 516 until his death. He was the son of king Gundobad and Caretene. He succeeded his father in 516. Sigismund and his brother Godomar were defeated in battle by Clovis's sons, and Godomar fled. Sigismund was captured by Chlodomer, King of Orléans, where he was kept as a prisoner. Later he, his wife and his children were executed. Godomar then rallied the Burgundian army and won back his kingdom. Life Sigismund was a student of Avitus of Vienne, the Chalcedonian bishop of Vienne who converted Sigismund from the Arian faith of his Burgundian forebears. Sigismund was inspired to found a monastery dedicated to Saint Maurice at Agaune in Valais in 515. The following year he became king of the Burgundians. Sigismund's conflict with Bishop Apollinaris Sigismund came into conflict with Apollinaris of Valence over the rules regarding marriage. The king's treasurer, Stephen, was living in flagrant incest. The four bishops of the province ordered him to separate from his companion, but he appealed to Sigismund, who supported his official and exiled the four bishops to Sardinia. They refused to yield, and after some time the King relented, and permitted three of them to return to their Sees, with the exception of Apollinaris, whose defiance had made him particularly obnoxious to the King. He was kept a close prisoner for a year. At last the King, stricken with a severe illness, sent the Queen to request Apollinaris go to the court to restore the monarch to health. On his refusal, the Queen asked for his cloak to place on the sufferer. The request was granted, the King recovered, and Apollinaris was allowed to return to his see. Murder of his son According to Gregory of Tours, Sigismund married the daughter of the Ostrogoth King Theodoric. They had a son, Sigeric. The widowed Sigismund later remarried, and his second wife "maltreated and insulted her stepson". When, on a feast day in 517, Sigeric saw his stepmother dressed in his late mother's ceremonial clothes, he called out that she was unworthy to wear them. (Under Burgundian law, his mother's clothes should have gone to his sister, Suavegotha.) The Queen persuaded Sigismund to deal with his son, alleging that Sigeric planned not only to kill his father and seize the throne, but that he also had designs on his grandfather's kingdom in Italy.