Complex sentence: Elias noticed that the two shared a bond, and when his father left and remarried, he placed him in the full-time care of Lomas and the troupe, who nurtured him as a performer, despite him being underage.
Split into simpler sentences: Elias noticed that the two shared a bond, and when his father left and remarried, he placed him in the full-time care of Lomas and the troupe. Lomas nurtured him as a performer, despite him being underage.