Another Orazio Borghese on the Porges Family Tree

I found "Orazio Borghese" here on the list of the Porges Family Tree..... 4th name from the bottom. Is this my Great Grandfather ? Porges.net/FamilyTreesBiographies

Descendance of Philipe le Beau

Marguerite (Louise) Stéphanie Claire de MARMIER (1807-1888)
x Jacques (Marie) Emmanuel FITZJAMES (1803-1846)
+> (Jacqueline) Arabella FITZJAMES (1827-1903)
| x Scipione Maria Alessandro Francesco BORGHESE (1823-1892)
| +> Isabella Maria Adelaide Margherita SALVIATI (1849-1918)
| | x Gastone LARDEREL (?-1895)
| +> Francesca Saveria SALVIATI (1855-1932)
| | x Francesco d'Assisi Scipione Maria BORGHESE (1847-1926)
| | +> Marco BORGHESE (1875-1942)
| | | x Isabel Fanny Louise PORGÈS (1879-1958)
| | | +> Scipione BORGHESE (1903-1918)
| | | +> Paolo BORGHESE (1904- )
| | | | x Anna SCHEIBLER (1907-1932)
| | | | .+> Flavia Maria Pia Isabella BORGHESE (1930- )
| | | | .| x Leopoldo de MARTINI di ORTESINO e CORTENUEVA (1909- )
| | | | .+> Camilla Maria Antonia Pia BORGHESE (1932- )
| | | | xx Marcella FAZI (1911- )
| | | | +> Francesco Marco Luigi Fabrizio BORGHESE (1938- )
| | | | +> Livio Marco Luigi Fabrizio BORGHESE (1938- )
| | | +> Giuseppe BORGHESE (1906-1938)
| | | +> Giovanni BORGHESE (1911- 1983)
| | | x Adriana COLOMBO (1916- )
| | | +> Marco BORGHESE (1943- )
| | | | x Dorothea PAPPAS
| | | +> Maria Cristina BORGHESE (1945- )
| | | | x Fabrizio CONTI
| | | +> Alessandro BORGHESE (1946- )
| | | +> Guendalina BORGHESE (1949-1957)
| | +> Pio BORGHESE (1877-1919)
| | | x Pia Diamilla MAGNELLI (1876-1929)
| | | +> Anna Maria BORGHESE (1916- )
| | | x Giuseppe SERLUPI d'ONGRAN (1907- )
| | | +> Domenico SERLUPI d'ONGRAN (1939- )
| | | +> Alfonso SERLUPI d'ONGRAN (1941- )
| | | | x Maria Cristina CARBONELLI de LETINO (1946- )
| | | | +> Francesca SERLUPI d'ONGRAN (1966- )
| | | +> Maria Pia SERLUPI d'ONGRAN (1944- )
| | | +> Francesco SERLUPI d'ONGRAN (1945- )
| | | +> Angela SERLUPI d'ONGRAN (1947- )
| | | +> Fabio SERLUPI d'ONGRAN (1948- )
| | | +> Teresa SERLUPI d'ONGRAN (1951- )
| | | +> Andrea SERLUPI d'ONGRAN (1954- )
| | | +> Paola SERLUPI d'ONGRAN (1958- )
| | +> Giulio BORGHESE (1879-1923)
| | | x Maria Adelaide BASTOGI (1889-?)
| | +> Orazio BORGHESE (1883-1947)
| | | x Elisa CASARETTO (1883-?)
| | +> Anna Maria BORGHESE (1887-?)
| | x Andrea PROVANA (1877-1937)