Osiris, [200], [210], [211]

Ostrogoths, [227], [431]

Othman, [432]

Otho, [430]

Otto I, King of Germany, [265], [432]

Otto of Bavaria, Prince, [354]

Ottoman Empire, [202]. (See also Turkey, Turks)

Oudh, [394]

Ownership, [373], [374], [375]

Oxen, [49], [104], [112]