Egbert van Drielst studied the works of the preeminent landscape painter of which age?
Egbert van Drielst:  He studied the old masters Salomon van Ruysdael, Jacob van Ruisdael, Jan Wijnants and in particular, Meindert Hobbema, and sought to make use of their techniques in his nature studies. Jacob van Ruisdael:  He is generally considered the pre-eminent landscape painter of the Dutch Golden Age, a period of great wealth and cultural achievement when Dutch painting became highly popular.
Dutch Golden Age