More on Ducas from Fact Monster:

• Abruzzi, Luigi Amedeo, duca degli - Abruzzi, Luigi Amedeo, duca degli Abruzzi, Luigi Amedeo, duca degli , 1873–1933, Italian ...
• Parma, Alessandro Farnese, duca di - Parma, Alessandro Farnese, duca di: Parma, Alessandro Farnese, duca di: see Farnese, Alessandro.
• John III, Byzantine emperor of Nicaea - John III John III (John Ducas Vatatzes), d. 1254, Byzantine emperor of Nicaea (1222–54), ...
• Gabriele D'Annunzio - D'Annunzio, Gabriele D'Annunzio, Gabriele 1863–1938, Italian poet, novelist, ...
• Alexius V - Alexius V Alexius V (Alexius Ducas Mourtzouphlos), d. 1204, Byzantine emperor (1204), son-in-law of ...

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