Earl Windsor is in Earldoms of England Alphabetically, Earldoms of England Chronologically.
1st: John Stuart 1st Marquis of the Isle of Bute. Died 1814. Grandson.
2nd: John Crichton-Stuart 2nd Marquis of the Isle of Bute. Died 1848. Son.
3rd: John Crichton-Stuart 3rd Marquis of the Isle of Bute. Died 1900. Son.
4th: John Crichton-Stuart 4th Marquis of the Isle of Bute. Died 1947. Son.
5th: John Crichton-Stuart 5th Marquess of Bute. Died 1956. Son.
6th: John Crichton-Stuart 6th Marquess of Bute. Died 1993. Son.
7th: John Crichton-Stuart 7th Marquess of Bute. Died 2021.
In 1794 John Stuart 1st Marquis of the Isle of Bute (age 49) was created 1st Marquis of the Isle of Bute, 1st Earl Windsor. Charlotte Jane Windsor Marchioness Bute (age 48) by marriage Marchioness Bute.
On 16 Nov 1814 John Stuart 1st Marquis of the Isle of Bute (age 70) died. His grandson John Crichton-Stuart 2nd Marquis of the Isle of Bute (age 21) succeeded 2nd Marquis of the Isle of Bute, 5th Earl Bute, 2nd Earl Windsor.
On 18 Mar 1848 John Crichton-Stuart 2nd Marquis of the Isle of Bute (age 54) died at Cardiff. His son John Crichton-Stuart 3rd Marquis of the Isle of Bute succeeded 3rd Marquis of the Isle of Bute, 6th Earl Bute, 3rd Earl Windsor.
On 09 Oct 1900 John Crichton-Stuart 3rd Marquis of the Isle of Bute (age 53) died. His son John Crichton-Stuart 4th Marquis of the Isle of Bute (age 19) succeeded 4th Marquis of the Isle of Bute, 7th Earl Bute, 4th Earl Windsor.
On 25 Apr 1947 John Crichton-Stuart 4th Marquis of the Isle of Bute (age 65) died. His son John Crichton-Stuart (age 39) succeeded 5th Marquis of the Isle of Bute, 8th Earl Bute, 5th Earl Windsor. Eileen Forbes (age 35) by marriage Marchioness Bute.
On 14 Aug 1956 John Crichton-Stuart 5th Marquess of Bute (age 49) died. His son John Crichton-Stuart 6th Marquess of Bute (age 23) succeeded 6th Marquis of the Isle of Bute, 9th Earl Bute, 6th Earl Windsor.
On 21 Jul 1993 John Crichton-Stuart 6th Marquess of Bute (age 60) died. His son John Crichton-Stuart 7th Marquess of Bute (age 35) succeeded 7th Marquis of the Isle of Bute, 10th Earl Bute, 7th Earl Windsor.