István Fáy was born 5 January 1881 to Ákos Fáy (1835-1909) and Katalin Nagy (1841-1903) and died 10 August 1954 in Buenos Aires, Argentina of unspecified causes. He married Hilda Baranyay (c1885-c1910) 27 October 1904 in Krátke Kosihy, Komárno District, Nitra Region, Slovakia. He married Katalin Geréby (1899-1989) 1920 in Lajosmizse, Bács-Kiskun County, Southern Great Plain Region, Hungary. Ancestors are from Hungary, Slovakia, the Holy Roman Empire, Serbia.
|Offspring of István Fáy and Hilda Baranyay (c1885-c1910)|
|Klára Anna Fáy (1905-c1990)||16 November 1905 Kurtakeszi, Komárno District, Nitra Region, Slovakia||1990|| Jozsef Pálffy-Daun (1892-1963)|
|Offspring of Ákos Fáy and Katalin Nagy (1841-1903)|
|Georgina Fáy (1876-1882)||1876||25 November 1882 Pozsony, Slovakia, Hungary|| |
|István Fáy (1881-1954)||5 January 1881||10 August 1954 Buenos Aires, Argentina|| Hilda Baranyay (c1885-c1910)|
Katalin Geréby (1899-1989)
|Erzsébet Fáy (1882-c1940)||31 August 1882 Pozsony, Slovakia||1940|| Lajos Fischer (1874-1938)|