The Grierson Baronetcy, of Lag in the County of Dumfries, is a dormant title in the Baronetage of Nova Scotia. which presently has no claimant. It was created on 25th March, 1685 for Robert Grierson, Member of the Scottish Parliament for Dumfries and notorious persecutors of the Covenanter

Covenanter

The Covenanters were a Scottish Presbyterian movement that played an important part in the history of Scotland, and to a lesser extent in that of England and Ireland, during the 17th century...

s, with remainder to heirs male whatsoever. The second Baronet represented Dumfriesshire

Dumfriesshire (UK Parliament constituency)

Dumfriesshire was a county constituency represented in the of the House of Commons of Great Britain from 1708 to 1801 and of the House of Commons of the Parliament of the United Kingdom from 1801 until 2005. It was known as Dumfries from 1950...

 in the British House of Commons

British House of Commons

The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

. The fourth Baronet took part in the First Jacobite Rising of 1715, and was captured & taken prisoner with his older brother, Sir William Grierson, 2nd Baronet.

Grierson Baronets, of Lag (1685)

• Sir Robert Grierson, 1st Baronet (b. c. 1657 - d. 29 December, 1733, Dumfries-shire, Scotland),
• Sir William Grierson, 2nd Baronet
  Sir William Grierson, 2nd Baronet
  Sir William Grierson, 2nd Baronet of Lag was born c. 1677 ; died in 1760, buried at Dunscore Parish Kirkyard ; 14th lineal chief of Clan Grierson ; was taken prisoner at the 1st Jacobite Rebellion of 1715 ; married Dame Anne Musgrave, daughter of Sir Richard Musgrave, 2nd Bt. and Dorothy James, on...
  
  (b. c. 1677 - d. 1760, Mouswald, Scotland),
• Sir Robert Grierson, 3rd Baronet (b. c. 1700 - d. c. 1764, Dumfries-shire, Scotland),
• Sir Gilbert Grierson, 4th Baronet (b. c. 1692 - d. 7 February, 1766, Dalkeith, Midlothian, Scotland), was in Grammer School at Penpont Parish in 1705,
• Sir Robert Grierson, 5th Baronet (b. c. 1733 - d. 8 August, 1839, Mouswald, Scotland, aged 106 years),
• Sir Alexander Gilbert Grierson, 6th Baronet (b. 10 March, 1777 - d. 14 March, 1840, Mouswald, Scotland),
• Sir Richard Grierson, 7th Baronet (b. c. 1804 - d. 5 May, 1846, Mouswald, Scotland),
• Sir Alexander William Grierson, 8th Baronet (b. 7 August, 1806 - d. 27 December, 1879, Southsea, Hants, England),
• Sir Alexander Davidson Grierson, 9th Baronet (b. 30 November, 1858 - d. 1 April, 1912, London, England),
• Sir Robert Gilbert White Grierson, 10th Baronet (b. 27 September, 1883 - d. 16 June, 1957, England),
• Sir Richard Douglas Grierson, 11th Baronet (b. 25 June, 1912 - d. 5 May, 1987, England),
• Sir Michael John Bewes Grierson, 12th Baronet (b. 24 June, 1921 - d. 24 March, 2008, London, England).