Background
He was born to Joseph de Riquet, Prince de Chimay and Prince de Caraman (of Belgium), and Marie Joséphine Anatole de Montesquiou-Fézensac.
He was born to Joseph de Riquet, Prince de Chimay and Prince de Caraman (of Belgium), and Marie Joséphine Anatole de Montesquiou-Fézensac.
He was titled "Prince de Chimay" from 1858 until his death in 1937. Named for its Belgian "château de Chimay", his family was noted for its patronage of music and the arts The couple had two children:
Marie Anatole Catherine Elisabeth, Comtesse de Caraman-Chimay (30 May 1891 – 13 February 1939), married Georges De Cocq in 1918
Joseph Marie Pierre Anatole Alphonse de Riquet (6 August 1894 – 18 January 1920)
By a second marriage to Anne Marie Charlotte Amélie Gilone Le Veneur de Tillières (1889–1962) on 24 June 1920, he had two more children:
Élie Marie Charles Pierre Paul, 21st Prince de Chimay, Prince de Caraman (22 October 1924 – 3 January 1980), married Marie Elisabeth Marthe Antoine Manset in 1947 and had issue.