Great Nephew is in Great Nephew and Niece.
On 29 Dec 1630 Oliver St John 1st Viscount Grandison (age 71) died. His great nephew William Villiers 2nd Viscount Grandison (age 16) succeeded 2nd Viscount Grandison 1C 1620. Mary Bayning Countess Anglesey (age 7) by marriage Viscountess Grandison.
On 08 Dec 1680 Henry Pierrepont 1st Marquess Dorchester (age 74) died. He was buried at Holme Pierrepont [Map]. Marquess Dorchester 1C 1645 extinct. His great nephew Robert Pierrepont 3rd Earl Kingston (age 20) succeeded 3rd Earl Kingston upon Hull, 3rd Viscount Newark 1C 1627, 3rd Baron Pierrepont of Holme Pierrepont 1C 1627.
On 12 Apr 1706 Thomas Howard 3rd Earl Berkshire (age 86) died. His great nephew Henry Bowes Howard 4th Earl Berkshire 11th Earl Suffolk (age 20) succeeded 4th Earl Berkshire 2C 1626.NOTEXT
On 28 Jul 1714 Thomas Thynne 1st Viscount Weymouth (age 74) died. His great nephew Thomas Thynne 2nd Viscount Weymouth (age 4) succeeded 2nd Viscount Weymouth, 3rd Baronet Thynne of Kempsford in Gloucestershire.
On 27 Mar 1716 Edward Harington 5th Baronet (age 76) died without issue. He was buried at St Swithin's Church, Merton where there is an inscription: "Here lies interred the body of Sir EDWARD HARINGTON, who died November the 7th, 1717, aged 76 years. A noble birth, a fancy bright and fine A temper charming, sweet, and grace divine; These all did once conspire to beautify The dust that now beneath this stone doth lye.". His great nephew James Harington 6th Baronet succeeded 6th Baronet Harington of Ridlington in Rutlandshire.
On 19 May 1798 William Byron 5th Baron Byron (age 75) was killed in action by cannon fire whilst fighting in Corsica. His great nephew George "Lord Byron" 6th Baron Byron (age 10) succeeded 6th Baron Byron of Rochdale in Lancashire.
In 1817 John 1st Lombe Baronet (age 86) died. His great nephew Richard Paul Jodrell 2nd Baronet (age 35) succeeded 2nd Baronet Lombe aka Jodrell of Salle Park in Norfolk.
On 12 Feb 1865 Algernon Percy 4th Duke Northumberland (age 72) died without issue. His first cousin George Percy 5th Duke Northumberland (age 86) succeeded 5th Duke Northumberland 3C 1766, 8th Baronet Smithson of Stanwick in Yorkshire. His great nephew John Murray aka Stewart-Murray 7th Duke of Atholl (age 24) succeeded 6th Baron Percy 4C 1722.
On 14 Jan 1868 John Chandos Reade 7th Baronet (age 83) died. He was buried at St Philip's Church, Little Rollright. His will makes no mention of any relative, but (to the exclusion of his heir at law) devises the Shipton Court estate and (with trifling exception) all his real and personal estate to Joseph Wakefield, apparently his servant, whom he directs to take his name. The will was declared valid, and pr. 24 June 1868 when the devise took effect. His great nephew Chandos Stanhope Reade 8th Baronet (age 16) succeeded 8th Baronet Reade of Barton in Berkshire.
In Oct 1870 Arthur George Onslow 3rd Earl Onslow (age 92) died. His great nephew William Onslow 4th Earl Onslow (age 17) succeeded 4th Earl Onslow, 4th Viscount Cranley, 7th Baron Onslow, 8th Baronet Onslow of West Clandon in Surrey, 9th Baronet Foote of London. Florence Coulston Gardner Countess Onslow (age 17) by marriage Countess Onslow.
On 20 Feb 1937 Charles Gordon 11th Marquess Huntly (age 89) died. His great nephew Douglas Charles Lindsey Gordon 12th Marquess Huntly (age 29) succeeded 12th Marquess Huntly, 8th Earl Aboyne.
On 19 Jul 1966 Fenella Hepburn Stuart Forbes Trefusis (age 76) died. Her great nephew Gerard Nevile Mark Fane-Trefusis 22nd Baron Clinton (age 32) abeyance terminated 22nd Baron Clinton.