He married Gertrud Solbach . Gertrud Solbach was christened at Siegen, Westfalen, Prussia 10 Oct 1644 daughter of Johannes Solbach and Elisabeth Patt .
They were the parents of 10
children:
Anna Catherina Holzklau
christened 14 Aug 1667.
Johan Heinrich Holzklau
christened 4 Jan 1670.
Ann Margretha Holzklau
christened 8 Apr 1672.
Christiana Holzklau
christened 16 Mar 1673.
Johann Hermann Holzklau
christened 16 Mar 1673.
Guetie Holzklau
christened 20 Feb 1676.
Thoeniges Anthon Holzklau
christened 28 Apr 1676.
Caspar Holzklau
born Abt 1679.
Ciara Holzklau
born Abt 1681.
Hans Jacob Holzklau
born Abt 1683.