Career
She was named after William"s first daughter, Maria, who had died in infancy. lieutenant was her wish to marry Philip, Count of Hohenlohe, whom she had known since she was eleven. She was supposed to marry the (Catholic) son of the duke of Aerschot, to help acquire him as an important ally against the Spanish forces, but Maria refused to marry him as she had become a Calvinist.
Also, Maria claimed guardianship of the possessions of Philip William while hostage in Spain, because of her being a full sister to Philip William, while Maurice was only his younger half-brother, and started a trial.
The couple remained childless and Philip died in 1606. Her brother Philip William was released in 1595 and returned to Breda in 1610.
In 1612, Maria founded a large orphanage in Buren. She died in 1616 in Buren.