His wife's paternal grandmother was a daughter of António Óscar Fragoso Carmona, 134th Prime-Minister and 9th President of the Republic of Portugal.
Has two daughters, D. Maria Índia Carmona José de Mello (b. 18 Sep 1997) and D. Maria do Mar Carmona José de Mello (b. 17 May 2001), named after some elements of the Portuguese Discoveries.