Lt. Col. William Francis Cyril James Hamilton Napier, 13th Lord Napier, 4th Baron Ettrick (9 September 1900 - 23 August 1954) was a Scottish soldier and courtier. He was the eldest son of Francis Napier, the 12th Lord Napier and his wife Hon. Clarice Jessie E. Hamilton, daughter of James Hamilton, 9th Lord Belhaven and Stenton. He was educated at Wellington College and Sandhurst. He succeeded his father as Lord Napier and Ettrick in 1941 and as chief of the name and arms of Clan Napier, upon his father's death.
In 1920, he was commissioned into the King's Own Scottish Borderers, as a 2nd Lieutenant, rising to the rank of Lieutenant Colonel by 1939. During this time, he served as the Commanding officer of the 6th battalion of the Scottish Borderers (from 1939 to 1941), as well as Assistant Adjutant General of the War Office (from 1943 to 1944 - under General Sir Ronald Adam). He was elected into the Royal Company of Archers in 1930, and held a number of political positions, including County Councillor for Selkirkshire (from 1946–1948) and DL and JP for Selkirkshire.
In 1928, He married Violet Muir Newson, and had four children:
| Peerage of Scotland | ||
|---|---|---|
| Preceded by Francis Napier |
Lord Napier 1941–1954 |
Succeeded by Nigel Napier |
| Peerage of the United Kingdom | ||
| Preceded by Francis Napier |
Baron Ettrick 1941–1954 |
Succeeded by Nigel Napier |