Octavia the Younger, also known as Octavia Minor or simply Octavia, was the sister of the first... more » | |
Oda of Haldensleben was a German noblewoman and by marriage Duchess of the Polans. She was the... more » | |
Odo I, Count of Blois, Chartres, Reims, Provins, Châteaudun, and Omois, was the son of Theobald... more » | |
 | Odo I was the Count of Troyes from 852 to 859. His ancestry is not known for certain. Onomastics... more » |
Odo I, Margrave of the Saxon Ostmark Odo I was margrave in the Saxon Eastern March of the Holy Roman Empire from 965 until his death. more » | |
| Odo II was the Count of Troyes in 876. He was a son of Odo I and Wandilmodis. Little is known of... more » |
Odo II, Margrave of the Saxon Ostmark Odo II was the only son of Thietmar, Margrave of the Saxon Ostmark. He succeeded his father in... more » | |
Odo was a King of Western Francia, reigning from 888 to 898. He was a son of Robert the Strong,... more » | |
Odo the Great, Duke of Aquitaine, obtained this dignity by 700. His territory included the Duchy... more » | |
| Odo was Count of Blois from 834 through 865. more » |
Odo was Count of Troyes and of Meaux from 1047 to 1066, then Count of Aumale from 1069 to 1115... more » | |
Odo of Rennes, Count of Penthièvre, was the youngest son of Duke Geoffrey I of Brittany and... more » | |
Flavius Odoacer, also known as Flavius Odovacer, was a Germanic soldier, who in 476 became the... more » | |
Odoardo Farnese, Duke of Parma Odoardo Farnese was Duke of Parma and Piacenza from 1622 to 1646. more » | |
Odoardo Farnese, Hereditary Prince of Parma Odoardo Farnese was the son and heir of Duke Ranuccio II Farnese, Duke of Parma and Piacenza. He... more » | |
Óengus son of Fergus, was king of the Picts from 732 until his death in 761. His reign can be... more » | |
Offa was King of Essex until 709, when he abdicated in order that he may take up life in a... more » | |
Offa was the King of Mercia from 757 until his death in July 796. The son of Thingfrith and a... more » | |
| Oghul Qaimish, was the principal wife of Güyük Khan and ruled as regent over the Mongol Empire... more » |
Olaf III of Norway or Olaf Kyrre, or Olaf Haraldsson, was King of Norway from 1067 to 1093. He... more » | |
Udalrich of Olomouc was Duke in Hradec Králové from 1152 till 1153 and between 1173–1177 ruled... more » | |
| Oleg Svyatoslavich of Chernigiv, sometimes also styled as of Tmutarakan, was a Rurikid prince... more » |
Oleg I Ingvarevich the Red, the Fair or the Handsome, was Prince of Ryazan from 1252 to 1258. more » | |
| Oleg II, Grand Prince of Ryazan Oleg II Ivanovich was Prince of Ryazan and Grand Prince of Ryazan from 1350 to 1402. He is best... more » |
Oleg was a Rurikid ruler of the Drevlyans from 969 to his death in 977. He was the second son of... more » |
