Abbé Auguste-Théodore-Paul de Broglie (June 18, 1834 – May 11, 1895) was professor of apologetics at the Institut Catholique in Paris, and writer on apologetic subjects. He was the son of Achille-Victor, Duc de Broglie, and his wife, Albertine, baroness Staël von Holstein, a Protestant and the daughter of Madame de Staël. After the death of his mother, who died young, he was brought up by the Baroness , née Vernet. This aunt, although also a Protestant, exerted herself "to make a large-minded Christian of him in the Church to which she did not belong" (Monseigneur d'Hulst in Le Correspondant, 25 May 1895).