ɪn noʊvˈɛmbɚ wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪksti θɹˈiː, hɪz sˈʌn fɹˈɛdɚɹˌɪk pɹəklˈeɪmd hɪmsˈɛlf ɹˈaɪtfəl sˈɛkənd dˈuːk ʌv ʃlˈɛswɪɡ ænd hˈɑːlstaɪn.
In November 1863, his son Frederick proclaimed himself rightful second Duke of Schleswig and Holstein.