ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪkstiːn, kˈɪŋ fɹˈɛdɚɹˌɪk aɪ vˈɛstᵻd hɪz dˈɔːɾɚ kˌæθɑːɹɹˈiːnə ænd hɜː hˈʌsbənd dʒˈeɪɹoʊm bˈɑːnɐpˌɑːɹt wɪððə tˈaɪɾəlz ʌv pɹˈɪnsɛs ænd pɹˈɪns ʌv mˈɔntfɔːɹt fɹˈɛntʃ: pɹˈɪns də mˈɔntfɔːɹt.
In 1816, King Frederick I vested his daughter Catharina and her husband Jérôme Bonaparte with the titles of Princess and Prince of Montfort (French: prince de Montfort).