O'DONOJU, JJ'AN (c.1755 1821), A Spanish soldier and viceroy, born in Spain. Already well known in his own country, lie was made acting Viceroy of Mexico in 1821. When he arrived there lie found that iturbide was practically conqueror of the entire province and that there was little left for him to do but make terms with the victorious revolutionist. He signed the Treaty of li•rdoba, which made Mexico an empire, and surrendered the city itself (1821). Meanwhile he was elected one of the provisional agents, and died soon after.
-roux (1809-111). A distin guished Irish historian. archieologist, anti Gaelic scholar. He was born in Attatcemore. County Kilkenny. in 1826 he obtained work in the Irish Record Office. and in 1829 was appointed to a post in the historical department of the Ordnance Survey. In the di-eharge of his office he ex amined many Irish manuscripts and visited 'very part of the country, thus becoming an authority on Irish topography. In 1840 the Irish logical SI leiely was formed, and in the following year contributed a map of ancient Ireland to its first volume of publieations. From
this time till the year of his death he was prolific writer on Irish history and antiquities. He was called to the Irish bar in 1847, having entered at Inn three years h' fore, O'Dono chief work was an edition of the so-called of the Four a compilation made in the seventeenth century by Michael and a company of Irish Franciscans. This was finished in 1851, and the nttxt year was employed by the Commission for the 4mblication of the ancient laws of Ireland. He made ex tensive manuscript collections for an edition of the Nem/chits .1/or. lint (lid not live to prepare them for publication. In 1845 he published a Grammar of the Irish Language which was long regaruled as the chief authority 011 the subject. Of remaining works the most im portant were issued by the Irish Archwological Society or the Celtic Society.