When the Viking chieftain Rollo obtained via the Treaty of Saint-Clair-sur-Epte the territories which would later make up Normandy, he distributed them as estates among his main supporters. Among these lands were the seigneurie of Harcourt, near Brionne, and the county of Pont-Audemer, both of which Rollo granted to Bernard the Dane, ancestor of the lords (seigneurs) of Harcourt. The first to use Harcourt as a name, however, was Anquetil d'Harcourt at the start of the 11th century.
c.911–c.950 : Bernard the Dane, governor and regent of the duchy of Normandy in 943c.950–c.960 : Torf, baron de Tourville, son of Bernardc.960–c.1020 : Turquetilc.1020 – aft. 1066 : Anquetil d'Harcourt, son of Turquetilaft. 1066 – aft. 1078 : Errand d'Harcourt, son of Anquetilaft. 1078 – aft. 1100 : Robert I of Harcourt, Brother of Errandaft. 1100 – aft. 1124 : William of Harcourt, son of Robert Iaft. 1124–1212 : Robert II of Harcourt, seigneur d'Elbeuf, son of William1212–1239 : Richard, Baron of Harcourt (d. 1239), son of Robert II1239–1288 : John I of Harcourt (1199–1288), son of Richard1288–1302 : John II of Harcourt (1240–1302), marshal and admiral of France, son of John I1302–1329 : John III of Harcourt (d. 1329), son of John II and Jeanne de ChâtelleraultThe barony of Harcourt was erected into the county of Harcourt, together with the seigneuries of Lillebonne, Troispierres, La Saussaye and Elbeuf, by letters patent of Philip VI in March 1338.
1329–1346 : John IV (d. 1346), Count of Harcourt in 1338, son of John III1346–1355 : John V (d. 1355), son of John IV1355–1389 : John VI (1342–1389), son of John V1389–1452 : John VII (1370–1452), son of John VIHis only son, John VIII, was killed in battle in 1424. Upon the death of John VII in 1452, his inheritance was to be divided between his elder daughter, Marie, wife of Antoine, Count of Vaudémont, and his second daughter, Jeanne, wife of Jean III de Rieux. However, Marie and her son John of Vaudémont were able to control the entire inheritance until 1454, when the de Rieux gained control of the County of Aumale. However, litigation continued between the de Rieux and the Vaudémont-Lorraine through the late 15th century.
1454–1476 : Marie, Countess of Harcourt, daughter of John VII, with:her husband Antoine, Count of Vaudémont 1454–1458her son John of Vaudémont 1458–1473her grandson René II, Duke of Lorraine 1473–14761476–1495 : René II, Duke of LorraineThe de Rieux continued to maintain their claims on Harcourt. Jeanne (1399–1456), the daughter of John VII, had married Jean III de Rieux (1377–1431) in 1414. She was succeeded by her son François de Rieux (1418–1458), who married Jeanne de Rohan in 1442 and was succeeded by his son Jean IV de Rieux. He reached a settlement with the Duke of Lorraine in 1495, trading Aumale for Harcourt, and resumed the title.
1495–1518 : Jean IV de Rieux (1447–1518), son of François1518–1532 : Claude de Rieux (1497–1532), son of Jean IV1532–1557 : Henri de Rieux (died 1557), son of Claude, died without issueUpon the death of Henri, the county of Harcourt passed to his sister Louise, who had married René, Marquis of Elbeuf, head of a cadet branch of the House of Lorraine.
1557–1570 : Louise de Rieux (1531–1570), sister of Henri1566–1605 : Charles I, Duke of Elbeuf (1556–1605), son of René1605–1666 : Henri, Count of Harcourt (1601–1666), younger son of Charles I1666–1694 : François Louis, Count of Harcourt, (1627–1694), nephew of Henri, son of Charles II, Duke of Elbeuf1694–1718 : Alphonse Henri, Count of Harcourt (1648–1718), styled the prince d'Harcourt, son of François Louis1719–1739 : Joseph, Count of Harcourt (1679–1739), styled the prince d'Harcourt, son of Alphonse1739–1747 : Louis Marie Léopold de Lorraine (1720–1747), styled the prince d'Harcourt, son of Joseph"Harcourt" has been given as a title to descendants of cadet branches of the family of Harcourt, without a territorial connection to the medieval county. Both branches descend from Philippe d'Harcourt (1353–1403), Lord of Bonnétable, son of John V of Harcourt.
The title of duc d'Harcourt was granted in 1700 by Louis XIV to Henry d'Harcourt (1654–1718), marshal of France, of the branch of Beuvron, upon the erection of the marquisate de La Mothe and de Thury to a duchy, with the name of Harcourt. The title was made a peerage in 1709, by letters patent.
1700–1718 : Henry d'Harcourt (1654–1718), duc d'Harcourt, marshal of France1700–1750 : François (1689–1750), duc d'Harcourt, marshal of France, son of Henry1750–1783 : Anne Pierre d'Harcourt (1701–1783), duc d'Harcourt, marshal of France, brother of François1783–1802 : François-Henri d'Harcourt (1726–1802), duc d'Harcourt, son of Anne1802–1839 : Marie François (1755–1839), duc d'Harcourt, nephew of François-Henri1839–1840 : Alphonse Aymar François (1785–1840), duc d'Harcourt, son of Marie1840–1846 : François Eugène Gabriel (1786–1865), duc d'Harcourt, brother of AlphonseHenri Marie Nicolas (1808–1846), marquis d'Harcourt, son of François (predeceased his father)1846–1895 : Charles François Marie (1835–1895), duc d'Harcourt, son of Henri1895–1908 : Henri Eugène François Marie (1864–1908), duc d'Harcourt, son of Charles1908–1997 : Charles Jean Marie (1902–1997), duc d'Harcourt, son of Henri1997 : François Henri (born 1928), duc d'Harcourt 