"Cornelis Troost (8 October 1696 – 7 March 1750) was an 18th-century actor and painter from Amsterdam.
His pupils were Jacobus Buys, Noël Challe, Pieter Tanjé, and his own daughter Sara Troost. He had five daughters and they were all trained in the arts, but only Sara had works engraved by other artists. She married the printer Jacob Ploos van Amstel and another daughter Elisabeth married his brother, the Amsterdam painter Cornelis Ploos van Amstel." - (Wikipedia (en) 21.12.2017)
