Acting
Birthday: 1881-03-15
Place of Birth: Amsterdam
Also Known As: Sien de la Mar, Clasina Margaretha Klopper, Sien Klopper
Clasina Margaretha ‘Sien’ de la Mar-Klopper (1881-1944) was a Dutch actress. She was married to actor Nap de la Mar and mother of popular actress, singer and comedienne Fien de la Mar.
