Queen Mother Margherita in her gondola – the late King Humbert seated beside her. Photo by Gribayedoff. King Humbert (Umberto I) died in 1900. Margherita of Savoy (1851-1926) became Queen Mother on the accession of her son, Victor Emmanuel III. According to Wikipedia one of Margherita's claims to fame is that the Margherita pizza was named after her. Source: Outing magazine, vol. LI no. 6, March, 1908, p. 647.