The earliest recorded mention of the name Napier occurred in 1290, in a charter of Maol Choluim I, Earl of Lennox, granting lands at Kilmahew to the Napiers. They are said to have taken their name from a saying by King Alexander II of Scotland to one of the Earls of Lennox, after a battle, that Lennox had na peer. Archibald Napier, son of John Napier, the inventor of logarithms, served as a Gentleman of the Bedchamber to King James VI of Scotland and as a Lord of Session. On 2 March 1627 he was created a baronet, "of Merchistoun in the County of Midlothian", in the Baronetage of Nova Scotia. A few months later he was raised to the Peerage of Scotland as Lord Napier, of Merchistoun. His grandson, the third Lord, obtained an extension of the patent with limitation to his heirs female and their heirs male and female, and failing which to his sisters and their heirs whatsoever, the female heir being obliged to assume the name and arms of Napier. On his death in 1683 the baronetcy became dormant while he was succeeded in the Lordship by his nephew Sir Thomas Nicolson, 4th Baronet, of Carnock, who became the 4th Lord Napier. He was the son of Sir Thomas Nicolson, 3rd Baronet, of Carnock by his wife the Hon. Jean Napier, eldest daughter of the second Lord Napier. The 4th Lord Napier died unmarried at an early age and was succeeded in the Baronetcy by his cousin and heir male and in the Lordship by his aunt, the fifth Lady Napier, the wife of John Brisbane.
Scott
Lady Napier was succeeded by her grandson, the sixth Lord. He was the son of Sir William Scott, 2nd Baronet, of Thirlestane by his wife Elizabeth, Mistress of Napier. In 1725 he also succeeded his father as third Baronet of Thirlestane.. The titles remain united. His grandson, the eighth Lord, sat in the House of Lords as a Scottish Representative Peer from 1796 to 1806 and from 1807 to 1823 and also served as Lord Lieutenant of Selkirkshire from 1819 to 1823. He was succeeded by his son, the ninth Lord. He was a Scottish Representative Peer from 1824 to 1832 and served as Ambassador to China in 1833. His son, the tenth Lord, was a prominent diplomat. In 1872 he was created Baron Ettrick, of Ettrick in the County of Selkirk, in the Peerage of the United Kingdom. This peerage gave him and his descendants an automatic seat in the House of Lords until the passing of the House of Lords Act 1999. the titles are held by his great-great-great-grandson, the fifteenth Lord, who succeeded his father in 2012. He is styled "Lord Napier and Ettrick".
Lords Napier (1627); Barons Ettrick (1872)
Napier family
Archibald Napier, 1st Lord Napier
Archibald Napier, 2nd Lord Napier
Archibald Napier, 3rd Lord Napier
Nicolson family
Thomas Nicolson, 4th Lord Napier
Margaret Brisbane, 5th Lady Napier
Scott family (adopted surname Napier)
Francis Napier, 6th Lord Napier
William Napier, 7th Lord Napier
Francis Napier, 8th Lord Napier
William John Napier, 9th Lord Napier
Francis Napier, 10th Lord Napier, 1st Baron Ettrick
William John George Napier, 11th Lord Napier, 2nd Baron Ettrick
Francis Edward Basil Napier, 12th Lord Napier, 3rd Baron Ettrick
William Francis Cyril James Hamilton Napier, 13th Lord Napier, 4th Baron Ettrick