Infanta Luisa Fernanda, Duchess of Montpensier
Infanta María Luisa Fernanda of Spain, Duchess of Montpensier( 30 January 1832 – 2 February 1897) was Infanta of Spain and Duchess of Montpensier.
She was the youngest daughter of King Ferdinand VII of Spain and his fourth wife Maria Christina of the Two Sicilies, the queen- regent, who was also his niece.
Maripily Rivera
María del Pilar" Maripily" Rivera Borrero( born 15 June 1977) is a Puerto Rican actress, model, and television presenter.
Isabella II of Spain
Isabella II (10 October 1830 – 9 April 1904), also known as La de los Tristes Destinos ("The One with the Sad Destinies"), was Queen of Spain from 1833 until 1868.
She came to the throne as an infant, but her succession was disputed by the Carlists, whose refusal to recognize a female sovereign led to the Carlist Wars.
After a troubled reign, she was deposed in the Glorious Revolution of 1868, and formally abdicated in 1870.
Her son, Alfonso XII, became king in 1874.
María del Pilar (athlete)
María del Pilar( born 12 October 1954) is a Guatemalan long- distance runner.
She competed in the women's marathon at the 1988 Summer Olympics.
María Báez Padilla
María del Pilar Báez Padilla( born 12 October 1973) is a Mexican politician from the Institutional Revolutionary Party.
In 2012 she served as Deputy of the LXI Legislature of the Mexican Congress representing the State of Mexico.
Ana Belén
María del Pilar Cuesta Acosta( born 27 May 1951, Madrid) known professionally as Ana Belén is a Spanish actress and singer.
Princess Pilar of Bavaria
Princess Pilar of Bavaria(" Maria del Pilar Eulalia Antonia Isabella Ludovika Franziska Josepha Rita Euphrasia von Wittelsbach, princess of Bavaria")
( March 13, 1891 – January 29, 1987) was the only daughter of Prince Ludwig Ferdinand of Bavaria and his wife Infanta Maria de la Paz of Spain.
Pilar del Río
María del Pilar del Río Sánchez( born March 15, 1950) is a Spanish journalist, writer and translator, president of José Saramago Foundation.
Infanta Pilar, Duchess of Badajoz
Infanta Pilar of Spain, Duchess of Badajoz, Dowager Viscountess of la Torre( Spanish:" María del Pilar Alfonsa Juana Victoria Luisa Ignacia y Todos los Santos de Borbón y Borbón- Dos Sicilias"; born 30 July 1936), sometimes known more simply as Pilar de Borbón is the elder daughter of Infante Juan, Count of Barcelona and Princess María Mercedes of Bourbon- Two Sicilies, and older sister of King Juan Carlos I.
She has also a younger sister, Infanta Margarita of Spain.
Infanta María del Pilar of Spain
Infanta María del Pilar of Spain (4 June 1861–5 August 1879), daughter of Queen Isabella II of Spain and sister of King Alfonso XII, was an Infanta of Spain.
At the age of seven, she accompanied her mother into exile in Paris, where she was educated at the College of the Sacred Heart.
After the fall of Napoleon III, the royal family settled in Geneva.
In 1875, with the restoration of the monarchy to her brother King Alfonso XII, she returned to Spain.
Upon her mother's return to France, Pilar moved with her younger sisters Paz and Eulalia to the Royal Palace of Madrid.
She completed her education under the supervision of her eldest sister Isabella, Princess of Asturias.
There was a project to marry Infanta Pilar to the son of Napoleon III, Napoléon, Prince Imperial.
The Empress of France, Eugenie, and Queen Isabella II were in favor of this union, but the young Prince Napoleon was killed in the Anglo-Zulu War.
Two months later Pilar, age eighteen, died suddenly in Eskoriatza.
Empress Eugenie took a wreath from her son's grave and sent it to Pilar's gravesite in El Escorial.

Question: When was Infanta María Del Pilar Of Spain's mother born?
Answer: 10 October 1830