The page of Klingsor, Tristan, English biography
Biography
Tristan Klingsor, birth name (Arthur Justin) Léon Leclère (born Lachapelle-aux-Pots, Oise department, 8 August 1874; died Paris, August 1966), was a French poet, musician, painter and art critic, best known for his artistic association with the composer Maurice Ravel.
https://en.wikipedia.org/wiki/Tristan_Klingsor
(Editor of this page: P. T.)