When Petrus Van Hellemont was born on 15 May 1778, in Attenrode, Flemish Brabant, Belgium, his father, Henricus Van Helmont, was 24 and his mother, Marie Catherine Vanparijs, was 25. He married Anna Maria Van Herrewegen on 25 August 1801, in Bunsbeek, Tienen, Flemish Brabant, Belgium. They were the parents of at least 2 sons and 3 daughters. He died on 3 November 1827, in Wever, Glabbeek, Flemish Brabant, Belgium, at the age of 49.