Born as the second son of Margrave Gautier in the Imperial Year 1160, Sylvain Gautier hails from the Holy Kingdom of Faerghus. His family includes an older brother, Miklan, who was cast aside upon the discovery of Sylvain's Crest, leading to multiple attempts on Sylvain's life by the envious Miklan. Sylvain's childhood was marked by close friendships with Ingrid, heir to House Galatea, and Felix from House Fraldarius.