Arent married Catryna Gerritsdottir in 1570 in Groningen, Groningen, Netherlands. Catryna was born in 1550 in Netherlands; died in 1608 in Aa kerk Straat, Groningen, Netherlands. [Group Sheet] [Family Chart]

1. Roelef I. Swartwout was born in 1575 in of Groningen, Groningen, Netherlands; died in 1634 in Groningen, Groningen, Netherlands; was buried in Groningen, Groningen, Netherlands.
2. Argent Swartwolt was born about 1575 in Groningen, Netherlands.
3. Jan Groningen
4. Jan Groningen