pˈɑːnsɑːnbi wʌzðə jˈʌŋɡɪst tʃˈaɪld ʌv θˈɜːd ˈɜːl ʌv bˈɛsbəɹˌoʊ ænd hɪz wˈaɪf hˌɛnɹɪˈɛɾə pˈɑːnsɑːnbi, kˈaʊntɛs ʌv bˈɛsbəɹˌoʊ.
Ponsonby was the youngest child of 3rd Earl of Bessborough and his wife Henrietta Ponsonby, Countess of Bessborough.