 Cornelia was the daughter of Cornelis van Nijenrode and Surishia, who married after Cornelis' death.A letter of 1663 by Cornelia to her mother and Goemon is known, as well as one of 1671 accompanying gifts of textiles.Other surviving letters include one of 1665 by , widow of , to and ; and that on an embroidered silk "fukusa" enclosing a box of tea, from , now at the Hirado Dutch Trading Post.