I believe you mean MC Escher. He was Dutch, though.
Swiss Mathematical Society was created in 1910.
Maurits Escher was a remarkable Swiss mathematician and teacher that was responsible for instituting the use of the symbol pi in mathematical notation.
Euler
Arnold Böcklin
Lindemann
Mr. Euler
Paul Klee.
It was the mathematician William Jones who first used pi as a mathematical symbol in 1706
Leonhard Euler.
Isle of the Dead was painted by a Swiss artist, Arnold Böcklin
Leonard Euler
Swiss artist 1901-1966.