Château de Trémazan

The Château de Trémazan is a ruined castle in the commune of Landunvez in the Finistère département of France.

The history of Trémazan is intimately linked to that of the du Chastel (or Châtel) family, who built it and made it their principal residence for several centuries.

The origins of this dynasty are uncertain, but they became very prominent, taking their place in the high Breton aristocracy and counted among the four most important families of the Viscounty of Léon.

Today, the non-profit association S.O.S Château de Trémazan attempts to preserve the castle and to increase knowledge of its past.

Pending funding for further restoration, the SOS Château de Trémazan association has attempted to finance temporary protection against potential structural collapses.