Question: Robert Byron, 13th Baron Byron is a cousin of the poet who was a leading figure in what movement?

Context articles: Robert Byron, 13th Baron Byron
George Byron, 8th Baron Byron
Rupert Byron, 11th Baron Byron
William Byron, 5th Baron Byron
John Byron (died 1623)
George Byron, 7th Baron Byron
Frederick Byron, 10th Baron Byron
Lord Byron
Richard Byron, 12th Baron Byron
George Byron, 9th Baron Byron

Robert James Byron, 13th Baron Byron (born 5 April 1950) is a British peer, nobleman, politician, and barrister.
 He is a descendant of a cousin of Romantic poet and writer George Gordon Byron, 6th Baron Byron.
Capt. George Anson Byron, 8th Baron Byron (30 June 1818 – 28 November 1870) was a British army officer, nobleman, peer, politician, and the eighth Baron Byron, as the son of Admiral George Anson Byron, 7th Baron Byron, who was the cousin of Romantic poet and writer George Gordon Byron, 6th Baron Byron.
Rupert Frederick George Byron, 11th Baron Byron (13 August 1903 – 1 November 1983) was a British peer, nobleman, politician, and the eleventh Baron Byron, as a descendant of a cousin of Romantic poet and writer, George Gordon Byron, 6th Baron Byron.
William Byron, 5th Baron Byron (5 November 1722 – 19 May 1798), also known as "the Wicked Lord" and "the Devil Byron", was a British peer, nobleman, politician, and the poet George Gordon Byron, 6th Baron Byron's great uncle.
 He was the son of William Byron, 4th Baron Byron and his wife Hon. Frances Berkeley, a descendant of John Berkeley, 1st Baron Berkeley of Stratton.
Sir John Byron (1562-1623) was an English nobleman, politician, knight, and Member of Parliament for Nottinghamshire in 1597.
 He was the son of Sir John Byron (died 1600).
 He had one daughter and ten sons, including some Cavalier commanders in the English Civil War: John Byron, 1st Baron Byron, Richard Byron, 2nd Baron Byron, Sir Robert Byron, Sir Philip Byron, and Sir Thomas Byron.
Admiral George Anson Byron, 7th Baron Byron (8 March 1789 – 1 March 1868), was a British naval officer, nobleman, peer, politician, and the seventh Baron Byron, in 1824 succeeding his cousin the poet George Gordon Byron, 6th Baron Byron in that peerage.
 As a career naval officer, he was notable for being his predecessor's opposite in temperament and lifestyle.
Rev. Frederick Ernest Charles Byron, 10th Baron Byron (26 March 1861 – 6 June 1949) was an Anglican clergyman, nobleman, peer, politician, and the tenth Baron Byron, as a grandson of Admiral George Anson Byron, 7th Baron Byron, who was the cousin of Romantic poet and writer George Gordon Byron, 6th Baron Byron.
George Gordon Byron, 6th Baron Byron, FRS (22 January 1788 – 19 April 1824), commonly known simply as Lord Byron, was an English poet, peer, politician, and a leading figure in the Romantic movement.
 He is regarded as one of the greatest British poets and remains widely read and influential.
 Among his best-known works are the lengthy narrative poems, "Don Juan" and "Childe Harold's Pilgrimage", and the short lyric poem, "She Walks in Beauty".
Lieutenant-Colonel Richard Geoffrey Gordon Byron, 12th Baron Byron DSO (3 November 1899 – 15 June 1989) was a British peer, nobleman, politician, and army officer.
 He was a descendant of a cousin of Romantic poet and writer, George Gordon Byron, 6th Baron Byron.
Lt. George Frederick William Byron, 9th Baron Byron (27 December 1855 – 30 March 1917) was a British army officer, nobleman, peer, politician, and the ninth Baron Byron, as a grandson of Admiral George Anson Byron, 7th Baron Byron, who was the cousin of Romantic poet and writer George Gordon Byron, 6th Baron Byron.