. . . . . "Mervyn Edward, Viscount Powerscourt" . . . "Mervyn Wingfield" . . . . "Mervyn Anthony Wingfield, 11th Viscount Powerscourt" . . . . . . "1904" . "The 7th Viscount Powerscourt" . "The Viscount Powerscourt" . . . . "Mervyn Wingfield, 7th Viscount Powerscourt" . . . . . . . "1836" . "Mervyn" . "Mervyn Wingfield, Viscount Powerscourt" . . "1885" . . "Mervyn Wingfield, 7th Viscount Powerscourt" . .