Count Gyula Lipót Imre Alajos György Károlyi de Nagykároly was born 12 May 1907 in Nagymágocs, Csongrád County, Southern Great Plain Region, Hungary to Imre Károlyi (1873-1943) and Zsofia Károlyi (1875-1942) and died 9 February 1942 Érd, Pest County, Central Hungary Region, Hungary of unspecified causes. He married Paula (Paulette) Horthy (1903-1940) 14 November 1930 in Budapest, Hungary.
Residences
Siblings
| Name | Birth | Death | Joined with |
| Tibor Károlyi (1897-1905) | |||
| Ferenc Károlyi (1900-1973) | |||
| Viktor Károlyi (1902-1973) | |||
| György Károlyi (1903-1969) | |||
| Consuelo Károlyi (1905-1976) | 10 April 1905 Cannes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France | 21 April 1976 Geneva, Canton of Geneva, Switzerland | Miklós Horthy (1907-1993) |
| Gyula Károlyi (1907-1942) | 12 May 1907 Nagymágocs, Csongrád County, Southern Great Plain Region, Hungary | 9 February 1942 Érd, Pest County, Central Hungary Region, Hungary | Paula (Paulette) Horthy (1903-1940) |