Created Viscountesses of England is in Viscountcies of England.
In 1674 Anne Bayning Viscountess Bayning [aged 54] was created 1st Viscountess Bayning for life.
On 22nd January 1828 Joan Scott Viscountess Canning [aged 51] was created 1st Viscountess Canning with a special remainder to the heirs male of her late husband George Canning Prime Mininster.
In November 1891 Emily Danvers 1st Viscountess Hambleden was created 1st Viscountess Hambleden of Hambleden in Buckinghamshire in honour of her late husband William Henry Smith [deceased] who had died the month before.
On 6th May 1943 Muriel Douglas-Pennant 1st Viscountess Daventry [aged 73] was created 1st Viscountess Daventry in recognition of her late husband Edward Fitzroy, former Speaker of the House of Commons. The creation being the last hereditary peerage created.