 Klaas Sijbrens Oostringa, son of Sijbren Clazes and Kinke Aukes.Born 31 Mar 1748 Leeuwarden, died 7 Oct 1826 Menaldum,, Friesland, age 78 years Married 4 May 1777 Vrouwenparochie, age 29 years (married 32 years) to:  Pietje Sipkes, age by marriage 19 years, daughter of Sipke Pieters and Goike Pieters.Born 28 Jun 1757 Vrouwenparochie, died 19 Feb 1810 Menaldum,, Friesland, age 52 years | |||