Obbiano, II, 345.
Occidente, II, 120, 140, 221, 231, 233, 282, 286, 309, 404, 461, 462, 499, 522, 528, 535; III, 13, 25, 303, 447, 454, 458, 490, 663, 664, 668, 669, 708, 711, 805, 811.
Oceano, II, 284; III, 16, 337, 374, 679.
Odesuer (Wadi-es-Sewâri), III, 884.
Ofanto, III, 34.
Oiûn-’Abbâs, II, 435.
Okâz, 41, 42.
Olivella (monastero dell’), III, 869.
Olivento, III, 31.
Oliveri, II, 433; 111, 102, 774, 783.