P. Troubetzkoy Testo M Rafaello Giolli taidekirja /Prince Paolo Petrovich Troubetzkoy (also known as Pavel or Paul; Russian: Павел Петрович Трубецкой, translit. Pavel Petrovich Trubetskoy; Intra, Italy, 15 February 1866 — Pallanza, 12 February 1938) was an artist and a sculptor who was described by G.B. Shaw as "the most astonishing sculptor of modern times