He is married to Pietronella Gijsels.
Permission for the marriage has been obtained in Axel on April 26, 1755.Source 1
They got married on May 11, 1755 at Axel.Source 11755-04-26 (hier getrouwd 11 mei), Lieven Coppens j.m. van Loo met, Pietronella Gijsels wed. van Philip Thijseburg
Axel, transcriptie ref. trouwboek 1604-1648, 1653-1691, 1691-1729, 1729-1749, 1750-1791 en 1791-1796 http://www.geneaknowhow.net/script/zeeland.html