Gilbert Ogilvy, 3rd son of Gilibride; assumed the surname Ogilvy from lands of that name in his possession, of which, with Powrie and Kyneithein in Angus, he had a charter 1172. [Burke's Peerage]
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THE NAME
The lands of Ogilvy are in Angus. The name derives from the Gaelic, Ocel-fa meaning high plain. Angus was a kingdom in Pictish times ruled by a mormaer, one of the ancient Celtic nobles of Scotland. Originally a mormaer, literally a great steward, was a semi-independent sub-king. After the feudalising of Scotland in the time of King David, mormaers came to be called earls. In those day of course there were no dukes or marquesses, so earl was the highest rank in the nobility.
Gillebride, Earl of Angus in the time of King David I, gave the lands of Ogilvy to his third son, Gilbert, some time before 1172, when Gilbert had a charter of Ogilvy, Powrie and Kyneithen, all in Angus. His grandson, Sir Patrick de Ogilvy of Wester Powrie appears on the Ragman Roll of nobles swearing fealty to Edward I of England in 1296.