"The part of the realm he wanted to hunt was Glyn Cuch"

Glyn Cuch (or Cwm Cuch) is the attractive wooded valley of the River Cuch, one of the tributaries of the River Teifi. For most of its course, the River Cuch marks the boundary between present-day Pembrokeshire and Carmarthenshire. Is Cuch and Uwch Cuch (Upper and Lower Cuch) were two of the commotes (cymydau) of Medieval Wales.

The River Cuch:

Afon Cych