Il est marié avec Johanna Blankendaal.
Ils se sont mariés le 4 mai 1766 à Engelum, gem. Menaldumadeel (Fr).Source 1
Bron: http://www.couperus.org/Tree/wijnaendts.htm
He studied medicine at the University of Franeker where his name was written as Petrus Cuperus, and he became a medical doctor. He also served as Mayor of the city of Harlingen. He married in Engelum on May 4, 1766, with Johanna Blankendaal
Petrus Johannes Couperus | ||||||||||||||||||
1766 | ||||||||||||||||||
Johanna Blankendaal |