Errigal was born the bastard son of a powerful slave merchant of the Inner Sea. The human Ramsus DiMidio is his father. His mother was one of Ramsus' servants, an elven woman named Amalia.
As soon as he was able, Errigal was enlisted to help man the slave ship crews of Ramsus as they plied the Inner Sea. Errigal grew strong and hearty, learning how to sail a ship and how to weild a whip.
In between ship raids at port in Sothis, Errigal was given the best schooling available and he grew interested in ancient civilizations and ruins, imagining himself delving into trap laden tombs and enriching himself in the process.
During his study times, a halfling slave named Riss befriended Errigal and this friendship changed Errigal's outlook on life. From then on, Errigal found the idea of slavery repulsive and Errigal grew depressed. Finally, Errigal helped free Riss from his life of slavery and ran off to start a new life in the River Kingdoms - far from his father's vengeful eye.