Antoine Maria Joachim Lamoral de Ligne was born 8 March 1925 in Brussels, Brussels-Capital Region, Belgium to Eugène de Ligne (1893-1960) and Philippine de Noailles (1898-1991) and died 21 August 2005 Belœil, Hainaut Province, Wallonia, Belgium of unspecified causes. He married Alix de Luxembourg (1929-2019) .
Children
| Name | Birth | Death | Joined with |
| Michel de Ligne (1951-) | 26 May 1951 Belœil, Hainaut Province, Wallonia, Belgium | Eleonora de Orléans-Bragança e Wittelsbach (1953-) | |
| Christine de Ligne (1955-) | 11 August 1955 Belœil, Hainaut Province, Wallonia, Belgium | Antônio, Prince Imperial of Brazil | |
| Sophie de Ligne (1957-) | 23 April 1957 Belœil, Hainaut Province, Wallonia, Belgium | Philippe de Nicolay (1956-) | |
Siblings
| Name | Birth | Death | Joined with |
| Antoine de Ligne (1925-2005) | 8 March 1925 Brussels, Brussels-Capital Region, Belgium | 21 August 2005 Belœil, Hainaut Province, Wallonia, Belgium | Alix de Luxembourg (1929-2019) |
| Baudouin de Ligne (1918–1985) | |||
| Isabelle de Ligne (1921–2000) | |||
| Yolande de Ligne (1923-2023) | 6 May 1923 Madrid, Spain | 13 September 2023 Brussels, Belgium | Charles-Louis d'Autriche (1950-2007) |