- Source: Peter Burrell, 4th Baron Gwydyr
- Peter Burrell, 4th Baron Gwydyr
- Peter Burrell, 1st Baron Gwydyr
- Willoughby Burrell, 5th Baron Gwydyr
- Peter Burrell
- Baron Willoughby de Eresby
- Baron Gwydyr
- Royal warrant of precedence
- Belstead Brook Hotel
- Albyric Drummond-Willoughby, 23rd Baron Willoughby de Eresby
- Priscilla Bertie, 21st Baroness Willoughby de Eresby
Peter Robert Burrell, 4th Baron Gwydyr (24 March 1810 – 3 April 1909) was High Sheriff of Suffolk in 1858. In addition, he was Secretary to the Lord Great Chamberlain, High Steward of Ipswich, and Chairman of Quarter Sessions, Suffolk. Burrell succeeded to the title of 4th Baron Gwydyr, of Gwydyr, County Carnarvon, on 26 August 1870.
Burrell was born at Langley Park, Beckenham. He was the son of Lindsey Merrik Peter Burrell and Frances Daniell, and the grandson of Sir Peter Burrell, 1st Baron Gwydyr.
He married Sophia Campbell in Ipswich on 10 December 1840, and they had one son, Sir Willoughby Burrell, 5th Baron Gwydyr (1841–1915).
Burrell later married Georgina Holford in Gloucestershire on 8 May 1856 and they had one daughter, Hon. Cicely Burrell (born 2 January 1858).
Burrell lived at Stoke Park, Ipswich, and is buried at St Mary Church, Belstead, near Ipswich.
Before his death, Burrell was the oldest living member of the peerage.