Aegir's birth is a bit of a mystery even to him. What is known is he was
raised in a temple of Cyric by a small group of priests, who fancied
themselves tinkerers in the ways of magic and genetics. They spent much of
his childhood performing tests on him, magically introducing select portions
of other humanoid races into him, creating the abomination he is today.
He left the temple around the age of 13 under less than favorable conditions,
and spent the next several years living on the streets, trying to figure out
his path in life. He spent several years in and around Waterdeep until one
day when he met a priest of Mask, and from there his path began to unfold.