Complex sentence: Beginning as early as 1549 when the captaincy of "Baia de os Todos Santos" (Bahia) reverted to the Crown due to death of its donee, the captains donatory failed financially and faded from the picture one by one.
Split into simpler sentences: Beginning as early as 1549, the captaincy of "Baia de os Todos Santos" (Bahia) reverted to the Crown, due to death of its donee. The captains donatory failed financially and faded from the picture one by one.