There have been two baronetcies created for persons with the same surname - Wynn, these baronetcies descended from north Wales.

Gwydir Castle is situated in the Conwy valley, Wales, a mile to the west of the ancient market town of Llanrwst and 1.5 miles (2.4 km) to the south of the large village of Trefriw. An example of a fortified manor house dating back to c. 1500, it is located on the edge of the floodplain of the river Conwy, and overlooked from the west by the now-forested slopes of Gwydir Forest.