When Pierre, Philippe Gossart was born in 1688, in Néchin, Hainaut, Belgium, his father, Toussaint Gossart, was 34 and his mother, Jeanne Robert, was 42. He married Marie, Elisabeth, Eleonore Wilmot on 5 October 1717, in Leers, Nord, France. They were the parents of at least 3 sons and 5 daughters. He died on 14 October 1742, in Leers, Nord, France, at the age of 54.