“ He died at the Hague on the 7th of October 1681. Nikolaes Heinsius was one of the purest and most elegant of Latinists, and if his scholarship was not quite so perfect as that of his father, he displayed higher gifts as an original writer. ”

“ HEINSIUS, NIKOLAES (1620–1681) , Dutch scholar, son of Daniel Heinsius, was born at Leiden on the 20th of July 1620. His boyish Latin poem of Breda expugnata was printed in 1637, and attracted much attention. ”