Swiss-born French architect and town planner whose real name was Charles Edouard Jeanneret (2,9)

I believe the answer is:

le corbusier

(Other definitions for le corbusier that I've seen before include "Twentieth century Swiss architect" , "Swiss-born French architect and urban planner - I bore ulcers (anag)" , "20th century architect" , "Swiss-French architect" .)

I've seen this clue in The Independent.

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