Gerlof married Fokel Sybrants Bonga about 1470 in Kimswerd, Friesland, Netherlands. Fokel (daughter of Sybrandt Doytthies Bonga and Wilsck Idserts Douma) was born in 1454 in Kimswerd, Friesland, Netherlands; died in 1524. [Group Sheet] [Family Chart]

1. Pier Gerlofs Donia was born in 1480 in Kimswerd, Friesland, Netherlands; died on 28 Oct 1520 in Sneek, Friesland, Netherlands.
2. Sybren Gerlofs was born in 1482 in Kimswerd, Friesland, Netherlands; died before Jul 1537.
3. Abbe Gerlofs was born in 1485 in Kimswerd, Friesland, Netherlands; died before 1555 in Friesland, Netherlands.
4. Tijdt Gerlofs was born in 1490 in Kimswerd, Friesland, Netherlands.