[1] Sigismund was inspired to found a monastery dedicated to Saint Maurice at Agaune in Valais in 515.

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.

[5] 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.

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.

He was captured by Chlodomer, king of Aurelianum (modern Orléans), beheaded and his body thrown in a well.

Godomar then rallied the Burgundian army and called for aid from his ally, the Ostrogothic king Theodoric the Great.

Chlodomer was killed at the Battle of Vézeronce, which took place on 25 June 524, reportedly at the hands of Godomar.

Correspondence has survived between Sigismund and Avitus of Vienne, who was a poet and one of the last masters of the classical literary arts.

In 1366, Charles IV, Holy Roman Emperor, transferred Sigismund's relics to Prague,[9] hence he has become a patron saint of the Kingdom of Bohemia, now Czech Republic.