László Bánffy de Losoncz was born 11 September 1896 in Gheja, Mureș County, Romania to János Bánffy de Losoncz (1870-1946) and Róza Ugron de Ábránfalva (1874-1953) and died 16 December 1974 Cluj-Napoca, Cluj County, Romania of unspecified causes. He married Ilona Zeyk de Zeykfalva (1909-c1985) 26 June 1932 in Cluj-Napoca, Cluj County, Romania.
|Offspring of László Bánffy de Losoncz and Ilona Zeyk de Zeykfalva (1909-c1985)|
|János Bánffy de Losoncz (1934-c2000)||10 October 1934 Cluj-Napoca, Cluj County, Romania||Margit Körmendy (1937) Margit Körmendy (1937) Erzsébet Jósika de Branyicska (1949)|
|Éva Mária Bánffy de Losoncz (1943-2009)||19 January 1943 Cluj-Napoca, Cluj County, Romania||5 July 2009 Cluj-Napoca, Cluj County, Romania||Csaba Györke (1941)|