Château de Lanniron, Historic château and gardens in Quimper, France.

Château de Lanniron is a long pale stone building with a grey slate hipped roof above a stone retaining wall, in Quimper. Its central section has a recessed portico with four columns supporting a balcony reached by a wide stone staircase. The symmetrical facade has tall rectangular windows on two levels, small square pavilions at each end, and upper balconies with black iron railings.

The estate served as a summer residence for the Bishops of Cornouaille from the 12th century until the French Revolution. Bishop Bertrand de Rosmadec directed major changes that transformed the property significantly.

The gardens display French design with symmetrical lawn squares and ornamental pools arranged as they were centuries ago. The way plants and sculptures are positioned shows how classical ideals shaped the landscape.

The château stands on the left bank of the Odet, south of Quimper, with the terraced gardens and the 46-arpent plant park listed as historic monuments and open to visitors. A stele inaugurated on 18 May 2010, allée de Laniron, commemorates the prisoners of Frontstalag 135; nothing of the camp itself survives, as it was entirely demolished.

The Frontstalag 135 camp held 7,746 men in May 1941, according to a Red Cross report, mostly colonial troops from North Africa and Indochina; ten colonial soldiers died there. One barrack served as a mosque, another as a library. The camp was demolished, and a stele inaugurated on 18 May 2010, allée de Laniron, commemorates the prisoners.