ˈæftɚ ðɪ ˌɛksɪkjˈuːʃən ʌv tʃˈɑːɹlz aɪ ɪn dʒˈænjuːˌɛɹi wˈʌn θˈaʊzənd sˈɪkshˈʌndɹɪd fˈoːɹɾi nˈaɪn, hiː ɐvˈɔɪdᵻd ɪnvˈɑːlvmənt ɪn ɹˈɔɪəlˌɪst kənspˈɪɹəsiz ɪn ˈɔːɹdɚ nˌɑːt tə kˈɑːmpɹəmˌaɪz hɪz bɹˈʌðɚɹɪnlˈɔː, ɔːlðˈoʊ ɪn wˈʌn θˈaʊzənd sˈɪkshˈʌndɹɪd fˈɪfti wˈʌn hɪz bɹˈʌðɚ dʒˈeɪmz ɐlˈɛdʒᵻdli tɹˈaɪd tʊ ɐsˈæsᵻnˌeɪt ˈɑːlɪvɚ sənt dʒˈɑːn, kˈɑːmənwˌɛlθ ɐmbˈæsədɚ tə ðə dˈʌtʃ ɹᵻpˈʌblɪk.
After the Execution of Charles I in January 1649, he avoided involvement in Royalist conspiracies in order not to compromise his brother-in-law, although in 1651 his brother James allegedly tried to assassinate Oliver St John, Commonwealth ambassador to the Dutch Republic.