Matthaeus married Agnes Knaur 26 Feb 1707, Unterhausen, Reutlingen, Baden-Württemberg, Germany. Agnes (daughter of Hans Peter Knaur and Martha Haeusler) was born 1684, Unterhausen, Reutlingen, Baden-Württemberg, Germany; was christened 24 Oct 1684, Unterhausen, Reutlingen, Baden-Württemberg, Germany. [Group Sheet]