Llys Rhosyr

An important court of the medieval Princes of Gwynedd

Situated near Newborough, Llys Rhosyr is the only Court of the Welsh Princes in Wales with visible remains that can be visited by the public. The cultural significance of the site is reflected in its designation by Cadw as a scheduled monument. It now becomes the 131st monument to be directly looked after by Cadw.

The royal llysoedd or palaces of the Princes of Gwynedd are amongst the most important secular settlement complexes in the Welsh Medieval landscape. Although other llys sites are known from documents or have been suggested from partial excavation, Llys Rhosyr is the only undefended Court or Llys of the Welsh Princes that has been confirmed through archaeological excavation.