He signed his paintings with his real name, Domenikos Theotokopoulos, written in Greek letters
He lived in Venice until 1570 and, according to a letter written by 
his much... [DOC] [TLE] Domnikos Theotokpoulos, El Greco (1541 - 1614) - Genealogy [PAR] Oct 5, 2014 ... "El Greco" (The Greek) was a nickname, a reference to his Greek origin, and the 
artist normally signed his paintings with his full birth name in Greek letters ...