[1] Chetwynd was born in Mayfair, London in 1849, the son of the 3rd Baronet and Lady Charlotte Augusta Hill, the daughter of the 3rd Marquess of Downshire.
Their daughter Lilian Florence Chetwynd married her mother's nephew and her first cousin, Henry Paget, 5th Marquess of Anglesey.
In 1887, Lord Durham gave a speech at the Gimcrack Club intimating wrongdoings with the running of the horses at Chetwynd's stable.
[7] In 1885 Chetwynd was involved with a bout of fisticuffs in Hyde Park with Lord Lonsdale over the favours of Lillie Langtry.
[8] One evening in 1892 Chetwynd invited George Alexander Baird to dine with him at his London House, 36 Curzon Street.