Abraham Mignon
Marrel's stepdaughter Maria Sibylla Merian (1647–1717), daughter of the engraver Matthew Merian, who lived with Marrel and thus studied with Mignon, achieved distinction as a flower painter. Besides Merian, his other pupil was Ernst Stuven. He left two daughters when he died; Catharina and Anna.
Sibylle of Brandenburg
Sibylle survived her husband by 13 years. At the request of Maria and John II, who resided in Cleves, she acted as governor of Jülich-Berg during this period. Sybille was described as spirited, energetic and wise and an equitable mother for her country.