Background
Kleywegt, Adrianus Jan was born on March 28, 1932 in Naaldwijk, Netherlands.
Kleywegt, Adrianus Jan was born on March 28, 1932 in Naaldwijk, Netherlands.
Graduate, Leyden University, 1957.
Teacher Groen van PrinstererLyceum, Vlaardingen, Holland, 1957-1965, Alexander Hegius Gymnasium, Deventer, Holland, 1965-1971. Assistant professor Vrije University, Amsterdam, Holland, 1971-1977, professor, since 1977.