He was married to Fernanda Pereira e Silva Monteiro and had a son and two daughters: • Fernando Manuel Pereira Monteiro Vassalo e Silva (
Lisbon, 6 December 1925 – Lisbon, 9 June 2006), married to Maria Amélia Franco Veiga (Lisbon, 20 March 1932 – 17 March 2004), daughter of António Veiga and wife Rosa Maria Garcia Franco, and had issue, seven children, two married and had issue. • Maria Fernanda Pereira Monteiro Vassalo e Silva, married to Rui António da Cunha Bernardino, and had issue, eight children, eight married and had issue, has now grandchildren and great-grandchildren, the first having the name India. • Maria da Luz Pereira Monteiro Vassalo e Silva, married to António Faias Sors Lagrifa, born in
Luanda, and had issue (their son Jorge Manuel Vassalo Sors Lagrifa (7 May 1948 – 6 February 2005) was the second husband without issue of Ana Cristina da Gama Caeiro da Mota Veiga, born in Lisbon, Santos o Velho, on 4 June 1950, daughter of
António da Mota Veiga and wife Maria Emília da Gama Caeiro, formerly married and divorced from
Marcelo Rebelo de Sousa). ==References==