Titles created by the Papal States.
Count de la Poer [Papal States, 1864]
1st: Edmond James de Poher Poer (19 Aug 1864-30 Aug 1915)
2nd: John William Rivallon de Poher Poer (30 Aug 1915-27 Mar 1939)
Duc de Stacpoole [Papal States, 1831]
1st: Richard Fitzgeorge Stacpoole (May 1831-7 Jul 1848) by Pope Gregory XVI
2nd: Richard Stacpoole (7 Jul 1848-1878)
3rd: George Marie Stanislas Koska Stacpoole (1878-16 Mar 1896)
4th: George Stacpoole (16 Mar 1896-3 Apr 1929)
5th: George Edward Joseph Patrick Stacpoole (3 Apr 1929-3 Apr 1965)
6th: George Geoffrey Robert Edward Stacpoole (3 Apr 1965-18 Jul 2005)
Duke Gandolfi [Papal States, 1899]
1st: Thomas Charles Gandolfi-Hornyold (6 May 1899-27 Feb 1906)
Duke of Pomar [Papal States, 1879]
1st: Marie Mariategui (1879-3 Nov 1895) by HH Leo XIII
Marquis Bandini [Papal States, 1753]
4th: Charles Bandini ( -5 Jun 1850)
5th: Sigismondo Nicholo Venanzio Gaetano Francisco Giustiniani-Bandini (5 Jun 1850-3 Aug 1908)
Marquis Gandolfi [Papal States, 1895]
1st: Thomas Charles Gandolfi-Hornyold (29 Mar 1895-27 Feb 1906)
Marquis de Stacpoole [Papal States, 1826]
1st: Richard Fitzgeorge Stacpoole (21 Feb 1826-7 Jul 1848) by Pope Leo XII
2nd: Richard Stacpoole (7 Jul 1848-1878)
3rd: George Marie Stanislas Koska Stacpoole (1878-16 Mar 1896)
4th: George Stacpoole (16 Mar 1896-3 Apr 1929)
5th: George Edward Joseph Patrick Stacpoole (3 Apr 1929-3 Apr 1965)
6th: George Geoffrey Robert Edward Stacpoole (3 Apr 1965-18 Jul 2005)
A total of 7 of these titles have been held by 19 individuals.
