plˈeɪdɛlbˈuːvɚɹi wʌzðə sˈʌn ʌv wˈɪljəm plˈeɪdɛlbˈuːvɚɹi, fˈɪfθ ˈɜːl ʌv ɹˈædnɚ ænd hˈɛlən mɐtˈɪldə tʃˈæplɪn.
Pleydell-Bouverie was the son of William Pleydell-Bouverie, 5th Earl of Radnor and Helen Matilda Chaplin.