Acting
Sien de la Mar-Klopper
March 15 1881 – July 10 1944- Place of birth: Amsterdam
- Gender: Female
- 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.
