Otranto, captured by the Turks, [iii. 189].

Abandoned, [iii. 191].

Otto of Frisingen, [ i. 352].

Ottoman Port, her treaties with France, [iii. 488].

Ottoman empire, its origin and history, [iii. 120] et seq.

Ottomans, defeated by Tamerlane the Tartar, [iii. 132], [iii. 133].

Reconquer the provinces overrun by Tamerlane, [iii. 133], [iii. 134].

Their power under Mahomet II., [iii. 144].

Capture Constantinople, and overturn the Greek empire, [iii. 156].

See [Turks].