Siagre of Neustria
Carolingian prince
Nephew of Charlemagne
Born (771) – Died (June 1, 797)

Father – Carloman II of Neustria (link)
Mother – Gerberga of Lombardy (link)

He was captured together with his elder brother Pepin and their mother Gerberga at Verona by his uncle King Charles
Siagre was forced to become a monk which rendered him ineligible to wear the crown
Siagre was later revered as a saint (June 1)