|Birth Place||Lille, France, France|
|Age||82 YEARS OLD|
|Known for||founder and 40% owner of Decathlon Group|
|Children||4, including Olivier Leclercq|
|Relatives||Gérard Mulliez (cousin)|
Leclercq founded Decathlon Group, a sporting goods retailer, in 1976.
His wife, Marie-Claude Leclercq, is a psychotherapist, and represents the family on the council of the Decathlon Foundation, started in 2005.
As of December 2017, Forbes estimated his net worth at US$5.1 billion.