Duke. Louis Antoine Philippe d'Orléans, son of Louis Philippe d'Orléans, Duke of Orléans, and his wife Louise Marie Adélaïde de Bourbon, was born at the Palais-Royal in Paris. He received the title of Duke of Montpensier. Antoine Philippe was the third of six children. His mother had inherited one of the largest fortunes in Europe. He and his siblings were educated by their governess, the former mistress of their father, at their father's insistence. In an age when boys were normally turned over to the care of men at age seven, the children were instead indoctrinated with her strong political views and alienated from their mother. His older brother Louis Philippe became a member of the Revolutionary Army under the name "Général Égalité" and Antoine joined his regiment in 1791. Their father also sided with the Revolution, and was elected to the National Convention in 1792, using the name "Philippe Égalité." However, realizing the violent direction in which the Revolution was headed for all nobility, including himself, Antoine's brother defected to Austria and sought political asylum there in March of 1793, also escorting their sister Adélaïde and their governess to safety. Their father denounced his defection and voted for the death of his cousin Louis XVI of France. Despite this, their father "Philippe Égalité" was guillotined on November 6, 1793. Antoine Philippe and his younger brother Louis Charles had been imprisoned, and they both contracted tuberculosis. A friend of their mother's, Jacques Marie Rouzet, managed to secure their release as well as that of their mother in 1796. However, the brothers were exiled to Philadelphia after they won their freedom. Their older brother Louis Philippe joined them the following year. After spending time traveling in the United States, the brothers learned that their mother had gone into exile in Spain, and they planned to return to Europe. However, their vessel was captured by a British warship. They were taken to Havana and were unable to find passage to Europe. After a year, they were suddenly expelled by Spanish authorities. The brothers arrived in England in January of 1800 and settled in Twickenham, near London. By 1807, Antoine's tuberculosis had worsened. His brother Louis Philippe took him on a trip to Devon to benefit from the fresh air; the brothers stopped at Salt Hill in Buckinghamshire because Antoine had difficulty breathing. He died there. The Duke of Montpensier was buried May 26, 1807 in the vault in the North aisle of the Tombs of Westminster Abbey. In addition, his sister Adélaïde commissioned an effigy of her brother. The cenotaph was installed in the chapel of the Château de Randan. Another, similar cenotaph for Antoine Philippe is located at the Chapelle Royale de Dreux, that was renovated and renamed by Louis Philippe I, King of the French, in 1830. That king was Antoine's older brother.