Robert Bertie, 3rd Earl of Lindsey PC FRS (8 November 1630 – 8 May 1701), styled Lord Willoughby de Eresby from 1642 to 1666, was an English nobleman.
Baron Gwydyr, in the County of Carnarvon, was a title in the Peerage of Great Britain.
 It was created on 16 June 1796 for Sir Peter Burrell, 2nd Baronet, who had earlier represented Boston and Haslemere in the House of Commons.
 The Burrell Baronetcy, of West Grinstead Park in the County of Surrey, had been created in the Baronetage of Great Britain on 5 July 1766 for his great-uncle Merrik Burrell, with remainder to the latter's nephew Peter Burrell (the father of Lord Gwydyr).
 Merrik Burrell had previously represented Marlow, Grampound, Haslemere and Great Bedwyn in Parliament.
 Lord Gwydyr married Priscilla Bertie, 21st Baroness Willoughby de Eresby, herself a descendant of the Aberffraw legacy through her grandmother Mary Wynn.
 They were both succeeded by their eldest son, Peter Drummond-Burrell, 22nd Baron Willoughby de Eresby.
 On the death in 1865 of his son, the two titles separated.
 The Barony of Willoughby de Eresby fell into abeyance between the late Baron's sisters (see the Baron Willoughby de Eresby for later history of this title) while the baronetcy and barony of Gwydyr were inherited by his cousin, the fourth Baron.
 He was the son of the Honourable Lindsey Merrik Peter Burrell, younger son of the first Baron.
 The baronetcy and barony became extinct on the death of his son, the fifth Baron, on 13 February 1915.
Robert Bertie, 1st Duke of Ancaster and Kesteven PC (20 October 1660 – 26 July 1723), styled Lord Willoughby de Eresby between 1666 and 1701 and known as The Earl of Lindsey between 1701 and 1706 and as The Marquess of Lindsey between 1706 and 1715, was a British statesman and nobleman.
Peregrine Bertie DL (ca. 1663 – 10 July 1711) was a British politician, the second son of Robert Bertie, 3rd Earl of Lindsey.
Robert Bertie, 4th Duke of Ancaster and Kesteven, PC (17 October 1756 in Grimsthorpe – 8 July 1779 in Grimsthorpe), styled Lord Robert Bertie until 1758 and Marquess of Lindsey between 1758 and 1778, was a British peer.
 He was the second son of the General Peregrine Bertie, 3rd Duke of Ancaster and Kesteven (died 1778) and Mary Panton (died 1793)
Earl of Abingdon is a title in the Peerage of England.
 It was created on 30 November 1682 for James Bertie, 5th Baron Norreys of Rycote.
 He was the eldest son of Montagu Bertie, 2nd Earl of Lindsey by his second marriage to Bridget, 4th Baroness Norreys de Rycote, and the younger half-brother of Robert Bertie, 3rd Earl of Lindsey (see the Earl of Lindsey and the Baron Willoughby de Eresby for earlier history of the Bertie family).
 His mother's family descended from Sir Henry Norris, who represented Berkshire and Oxfordshire in the House of Commons and served as Ambassador to France.
 In 1572 he was summoned by writ to Parliament as Lord Norreys de Rycote.
 He was succeeded by his grandson, the second Baron.
 In 1621 he was created Viscount Thame and Earl of Berkshire in the Peerage of England.
 He had no sons and on his death in 1624 the viscountcy and earldom became extinct.
 He was succeeded in the barony by his daughter Elizabeth, the third holder of the title.
 On her death the title passed to her daughter, the aforementioned Bridget, the fourth Baroness, second wife of the second Earl of Lindsey.
Earl of Lindsey is a title in the Peerage of England.
 It was created in 1626 for the 14th Baron Willoughby de Eresby (see Baron Willoughby de Eresby for earlier history of the family).
 He was First Lord of the Admiralty from 1635 to 1636 and also established his claim in right of his mother to the hereditary office of Lord Great Chamberlain of England.
 Lord Lindsey fought on the Royalist side in the Civil War and was killed at the Battle of Edgehill on 23 October 1642.
 He was succeeded by his son, the second Earl.
 He also fought at Edgehill and surrendered to the Parliamentarians in order to attend his mortally wounded father.
 Lord Lindsey later fought at the First Battle of Newbury, Second Battle of Newbury, and at Naseby.
 His son from his second marriage, James, was created Earl of Abingdon in 1682.
 He was succeeded by his son from his first marriage to Martha Cockayne, the third Earl.
 He represented Boston in the House of Commons and served as Lord Lieutenant of Lincolnshire.
Robert Welles, 8th Baron Willoughby de Eresby and Baron Welles (died 19 March 1470), was the son of Richard Welles, 7th Baron Welles, and Joan Willoughby, 7th Baroness Willoughby de Eresby.
 He was the prime mover in an uprising against Edward IV in 1470, although his actions were possibly orchestrated by Richard Neville, 16th Earl of Warwick.
Peregrine Bertie, 13th Baron Willoughby de Eresby (12 October 1555 – 25 June 1601) was the son of Catherine Willoughby, 12th Baroness Willoughby de Eresby, and Richard Bertie.
 Bertie was Lady Willoughby de Eresby's second husband, the first being Charles Brandon, Duke of Suffolk.
 Peregrine Bertie's half-brothers, Henry and Charles Brandon, died as teenagers four years before his birth.
 His sister Susan married the Earl of Kent and then the nephew of Bess of Hardwick.
 Owing to religious politics, the parents had to move outside England and the boy was born at Wesel on the River Rhine.
Montague Peregrine Bertie, 11th Earl of Lindsey, DL (26 December 1815 – 27 January 1899), styled The Honourable Montague Bertie until 1877, was an English nobleman, soldier, and landowner, the second son of Albemarle Bertie, 9th Earl of Lindsey and his wife Charlotte.

Question: Peregrine Bertie, was a British politician, the second son of Robert Bertie, 3rd Earl of Lindsey, styled Lord Willoughby de Eresby from 1642 to which year, was an English nobleman?
Answer: 1666