| Name | Role | Place | Source | |
|---|---|---|---|---|
| Willem Mathysz | Witness | 1614 | Leiden | |
| Willem Mathysz | Witness | 1644 | Leiden | |
| Willem Mathysz | Groom | 1649 | Leiden | |
| Willem Mathysz | Groom | 1651 | Leiden, Norwits | |
| Willem Mathysz | Witness | 1602 | Leiden | |
| Willem Mathysz Wellens | Registered | 1665 | Leiden | |
| Willem Mathysz van Tol | Witness | 1632 | Leiden | |
| Willem Mathysz. | Mentioned | 1552 | Leiden |
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/