Charles Leopold D' Arenberg & Louise Marguerite De La Mark 
They had a son and a daughter, named Louis Engelbert D' and Leopoldine D'.
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Personal Details
Charles Leopold D' Arenberg
Charles Leopold D' was born on April 1st, 1721. He died at the age of 57 on August 17th, 1778.
Louise Marguerite De La Mark
Louise Marguerite De La was born on August 18th, 1730 in Paris, France. She died at the age of 89 on August 10th, 1820 in Heverlee.
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Children
Louis Engelbert D' Arenberg
Louis Engelbert D' was born on August 3rd, 1750 in Brussels, Belgium. He died at the age of 69 on March 7th, 1820 in Brussels, Belgium.
Leopoldine D' Arenberg
Leopoldine D' was born on July 13th, 1751. She died at the age of 61 on August 26th, 1812.