Marriage: Mettien Boeles 18 Feb 1666, Marum Marum Groningen Netherlands
Died: 17 Jan 1695, Marum Marum Groningen Netherlands
Siwert married Mettien Boeles, daughter of Boele Martens and Unknown, on 18 Feb 1666 in Marum Marum Groningen Netherlands. (Mettien Boeles died on 26 Aug 1677 in Marum Marum Groningen Netherlands.)
