He is married to Margaretha de Vos.
Permission for the marriage has been obtained in Leyden on August 14, 1811.Source 2
They got married in the year 1811 at Leyden, he was 20 years old.Source 2Child(ren):
Andries Beun's Genealogie-site:11873 Leiden Genealogie Beun.net d.d. 27 Juli 2010
http://www.mijnstambomen.nl/leiden/beun.htm d.d. 13 december 2014
Regionaal Archief Leiden - Burgerlijke Stand 1841 Geboorte-akte 1391 (22 november 2012)