What is "muiredach"

Muiredach ( fl. 958–963) was an ealdorman in northern England in the reign of Edgar the Peaceable. He is recorded in subscriptions to two royal charters.

The first, Sawyer 679, is a grant by King Edgar to Oscytel, Archbishop of York of 10 hides at Hutton in Nottinghamshire, where he is named Mirdach dux, ninth on the ealdorman list between Leod dux and Ascured dux.

His other appearance is in a newly discovered charter (found again 1983) issued by King Edgar to one Æthelferth, granting 5 hides at Ballidon in Derbyshire, where he is named Myrdah dux and appears eighth (last) in the ealdorman list, above Gunner dux. His name precedes Oslac dominus ("Lord Oslac"), who is probably Oslac, future ealdorman of Northumbria.

The names Mirdach and Myrdah represented the Goidelic name Muiredach, and he is thus thought to be of Gaelic or Norse-Gaelic origin. He may have been one of the Norse-Gaelic settlers resident in north-western Northumbria during the period.

Muiredach ( Old Irish), Muireadhach or Muireach, anglicized variously to Murdoch, Murtagh, Murdac, Mordacq and other forms, is a Goidelic name (meaning "chieftain") popular in Scotland and Ireland in the Middle Ages:

• Muiredach Bolgrach, mythological Irish king
• Muiredach Tirech, legendary high-king of Ireland
• Muiredach mac Eógain (died 489), legendary early king of Ailech
• Muiredach Muinderg (died 489), legendary king of the Ulaid
• Muiredach of Killala, reputed early Irish saint
• Muiredach Muillethan (died 702), king of Connaught
• Muiredach mac Ainbcellaig (died c. 770), king of Dál Riata
• Muiredach mac Murchado (died 760), king of Leinster
• Muiredach mac Brain (died 818) (8th-century–818), king of Leinster
• Muiredach mac Ruadrach (8th-century–829), king of Leinster
• Muiredach mac Eochada (died 839), king of the Ulaid
• Muiredach mac Brain (died 885), king of Munster
• Muiredach mac Eochocáin (died 895), king of the Ulaid
• Muireadhach Ua Carthaigh (died 1067), Chief Poet of Connacht
• Muireadhach Ua Dubhthaigh, Archbishop of Connacht
• Muireadhach Ua Flaithbheartaigh (died 1121), King of Iar Connacht
• Muiredach (ealdorman) ( fl. 958–963), ealdorman
• Muireadhach I, Earl of Menteith ( fl. 12th-century–13th-century), Scottish mormaer
• Muireadhach Albanach ( fl. early 12th-century–13th-centuryth century), Gaelic poet and crusader
• Muireadhach II, Earl of Menteith (died c. 1230), Scottish mormaer
• Muireadhach III, Earl of Menteith (died 1332), Scottish mormaer
• Muireadhach of Inchaffray (died 1340s), Scottish abbot
• Muireadhach Sdíbhard or Muireadhach IV, Earl of Menteith (died 1425), Scottish prince