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Magennis

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Magennis

Magennis (Irish: Mac Aonghusa), also spelled Maguiness or McGuinness, is an Irish surname, meaning the "son of Angus", which in eastern Ulster was commonly pronounced in Irish as Mag/Mac Aonghusa. A prominent branch of the Uíbh Eachach Cobha, the Magennises would become chiefs of the territory of Iveagh, which by the 16th century comprised over half of modern County Down. By the end of the 17th century, their territory had been divided up between them, the McCartan chiefs and English prospectors.

The four main branches of the Magennis clan were: Castlewellan, Corgary, Kilwarlin, and Rathfriland, between whom there was some rivalry. The Mac Artáin McCartan chiefs of Kinelarty, descend from the same genealogical line as the Magennis clan, through Artán, the son of Faghártagh, the son of Mongán Mac Aonghusa.

The Magennis clan were a sept of the Ui hAitidhe, and descended from Sárán, a descendant of Eachach Cobha, of which the territory of Uíbh Eachach Cobha (Iveagh) derived its name. They ruled the sub-territory of Clann Aodha (Clan Hugh), however by the 12th-century had replaced the Ui hAitidhe as the chiefs of Iveagh, with Rathfriland as their base.

One of the earliest mentions of the Magennis as chiefs of Iveagh, is in the charter granted to the abbey of Newry in 1153, which was witnessed by Aedh Mor Magennis, who was cited as being chief of Clann Aodha and of Iveagh. The Magennises are also mentioned in letters by King Edward II, where they are titled Dux Hibernicorum de Ouehagh, meaning "chief of the Irish of Iveagh".

The Magennises allied themselves to the Earldom of Ulster, which was created after the Norman invasion of Ulster, until the death of William Donn de Burgh, 3rd Earl of Ulster in 1333.[citation needed] After the subsequent collapse of the earldom, the Magennises by the 15th century had expanded Iveagh all the way east to Dundrum Castle, where County Down meets the Irish Sea.

By 1500 there were twelve branches of the Magennis clan,[citation needed] the most prominent being: Castlewellan, Corgary, Kilwarlin, and Rathfriland, the rivalry between whom threatened the cohesion of Iveagh. Throughout the 16th century, the Magennis clan ensured they remained on good terms with the English. One chief, "Arthur Guinez", was on the losing side in the Battle of Bellahoe while invading County Meath in 1539. Art MacPhelim Magennis of Castlewellan (possibly the same man as Arthur Guinez) and Donal Óg Magennis of Rathfriland were both knighted by Henry VIII at Greenwich Palace in 1542, as a part of the new policy of surrender and regrant.

Sir Hugh Magennis, the son of Donal Óg Magennis, was called by Sir Henry Bagenal the "civillist of all the Irishry", with Sir Nicholas Bagenal cited as having brought Sir Hugh over to the Queen's side from that of O'Neills. In 1584 Sir Hugh was regranted 'the entire country or territory of Iveagh', but not including the territory of Kilwarlin. When Sir Hugh died in 1596, his heir was his son Art Roe Magennis, whose sister Catherine was married to Hugh O'Neill. As such Art Roe joined Hugh's side in the Nine Years' War against the English. During this war, Baron Mountjoy, the Lord Deputy of Ireland, ravaged Iveagh to the point where Art Roe Magennis submitted to prevent the extermination of his people, and as such was promised he could keep his lands.

Following the Nine Years' War and just before the process of colonising Ulster with loyal Protestant subjects, the arrangement of dividing mighty Gaelic lordships into smaller weaker lordships, such as what happened in County Monaghan with the MacMahon's, occurred with Iveagh. In 1605 the "Commission for the Division and Bounding of the Lords" was established to replicate the Monaghan arrangement, with Art Roe Magennis applying to be made Lord Iveagh. In February 1607, the commission however decided to break up Iveagh, a process that continued until 1610, seeing the creation of fifteen freeholds. The Magennises were granted thirteen of these freeholds, with Art Roe being granted the largest. The rest however was given to officers in the Crown forces, most of whom had served in the Nine Years' War under Sir Henry Bagenal and Sir Arthur Chichester.

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