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... [DOC] [TLE] 1000+ images about El Greco, Domnikos Theotokpoulos on ... [PAR] El Greco, born Domnikos Theotokpoulos (1541  7 April 1614), was a painter 
... the artist normally signed his paintings with his full birth name in Greek letters,
... [DOC] [TLE] El Greco - NNDB.com [PAR] AKA Domenikos Theotokopoulos ...