On 10th December 1878 Antoine Alfred Agénor de Gramont 11th Duc de Gramont [aged 27] and Marguerite de Rothschild Duchess Gramont [aged 23] were married. Her father Mayer Carl Freiherr von Rothschild [aged 58] disapproved; he disowned her. He the son of Agénor 10th Duc de Gramont [aged 59].
On 29th September 1879 Armand de Gramont 12th Duc de Gramont was born to Antoine Alfred Agénor de Gramont 11th Duc de Gramont [aged 28] and Marguerite de Rothschild Duchess Gramont [aged 24].
On 17th January 1880 [his grandfather] Agénor 10th Duc de Gramont [aged 60] died. His son Antoine [aged 28] succeeded 11th Duke Gramont. [his mother] Marguerite de Rothschild Duchess Gramont [aged 24] by marriage Duchess Gramont.
In 1904 Armand de Gramont 12th Duc de Gramont [aged 24] and Élaine Greffulhe Duchess Gramont [aged 21] were married. He the son of Antoine Alfred Agénor de Gramont 11th Duc de Gramont [aged 52] and Marguerite de Rothschild Duchess Gramont [aged 48].
1904. Philip de László [aged 34]. Portrait of Armand de Gramont 12th Duc de Gramont [aged 24].
On 25th July 1905 [his mother] Marguerite de Rothschild Duchess Gramont [aged 49] died.
On 3rd August 1907 Antoine Alfred Agénor de Gramont 11th Duc de Gramont [aged 55] and [his step-mother] Princess Maria Ruspoli [aged 19] were married. She by marriage Duchess Gramont. The difference in their ages was 36 years. He the son of [his grandfather] Agénor 10th Duc de Gramont.
1922. Philip de László [aged 52]. Portrait of Armand de Gramont 12th Duc de Gramont [aged 42].
On 30th January 1925 Antoine Alfred Agénor de Gramont 11th Duc de Gramont [aged 73] died. His son Armand [aged 45] succeeded 12th Duke Gramont. [his wife] Élaine Greffulhe Duchess Gramont [aged 42] by marriage Duchess Gramont.
On 11th February 1958 [his wife] Élaine Greffulhe Duchess Gramont [aged 75] died.
On 2nd August 1962 Armand de Gramont 12th Duc de Gramont [aged 82] died.
Great x 4 Grandfather: Louis 6th Duke of Gramont
Great x 3 Grandfather: Antoine 7th Duke Gramont
Great x 4 Grandmother: Geneviève de Gontaut
Great x 2 Grandfather: Antoine 8th Duke Gramont
Great x 1 Grandfather: Antoine Héraclius Agénor 9th Duc de Gramont
Great x 3 Grandfather: Jules 1st Duke of Polignac
Great x 2 Grandmother: Aglae de Polignac "Guichette" Duchess Gramont
Great x 3 Grandmother: Yolande Martine Gabrielle Polastron Duchess Gramont
Grandfather: Agénor 10th Duc de Gramont
Father: Antoine Alfred Agénor de Gramont 11th Duc de Gramont
Armand de Gramont 12th Duc de Gramont
Great x 2 Grandfather: Mayer Amschel Rothschild
Great x 1 Grandfather: Carl Mayer von Rothschild
Grandfather: Mayer Carl Freiherr von Rothschild
Mother: Marguerite de Rothschild Duchess Gramont
Great x 2 Grandfather: Mayer Amschel Rothschild
Great x 1 Grandfather: Nathan Mayer Rothschild
Grandmother: Louise de Rothschild