Mosque of, wealth found in the, [ i. 224], [ i. 229].
Ommiades, dynasty of the, [ i. 8]; [iii. 414].
Ordeal by fire, [ i. 193].
Ordeals during the middle ages, [iii. 312].
Ores, explanation of, [ ii. 404].
Oriflamme, or royal standard, [ i. 354].
Orpin, count of Bourges, [ i. 249].
Ortock, the Turkish general, conquests of, [ i. 33].
Otho of Savoy, excommunicated, [ ii. 209].
Makes war against the pope, [ ii. 209].