When The 2nd Duchess of Fife died in 1959, her hereditary peerages passed to her nephew James Carnegie (1929–2015), eldest son of her sister Maud and her husband Charles Carnegie, 11th Earl of Southesk (1893–1992). Thirty-three years later, in 1992, The 3rd Duke of Fife also succeeded his father as 12th Earl of Southesk and chief of the Clan Carnegie. As consequence, the following peerage titles became therefore subsidiary to that of the Dukedom: Lord Carnegie of Kinnaird in the Peerage of Scotland (created in 1616), Earl of Southesk and Lord Carnegie in the Peerage of Scotland (both created in 1633), Baron Balinhard in the Peerage of the United Kingdom (created in 1663; all previous mentioned titles awarded to Sir David Carnegie (1575–1658), an Extraordinary Lord of Session), and the Carnegie Baronetcy in the Baronetage of Nova Scotia (created in 1641 for David Carnegie of Pitcarrow (died 1708), a Scottish politician). Upon his death in 2015, he was succeeded in the Fife and Carnegie titles by his son, David Charles Carnegie (born 1961). The 4th Duke of Fife's heir apparent is his son Charles Duff Carnegie (born 1989), who uses the courtesy title "Earl of Southesk". The hypothetical grandson of the duke and heir-to-heir apparent would be styled instead "Lord Carnegie".