Wingfield, Mervyn, 7th Viscount Powerscourt (1836 -1904)
Mervyn Edward Wingfield became Viscount Powerscourt in 1844 on the death of his father Richard Wingfield, 6th Viscount Powerscourt. On 26 April 1864, Wingfield married Lady Julia Coke, the daughter of Thomas Coke, 2nd Earl of Leicester. They had five children.
Powerscourt was appointed a Knight of the Order of St Patrick on 2 August 1871. He was created Baron Powerscourt in the Peerage of the United Kingdom in 1885, enabling him to sit in the House of Lords.
Lord Powerscourt collected paintings as a hobby and published a catalogue in 1903 entitled A description and history of Powerscourt.