Locoal-Mendon
Locoal-Mendon is a commune in the Morbihan department of Brittany in north-western France.
Toponymy
Known as Locus Sancti Guitali in 1037 and Sanctus Gudualus in 1387.From the Breton lok which means hermitage, and Goal which is a name for the Breton saint Gudwal, Gurval or Gutual, eponym also of Gulval.
Mendon is derives probably from the Breton men which means rock and don which means deep.