Muireadach II of Menteith (also written as Murethach, Murdoch or Maurice), ruled 1213-1234, is the third known Mormaer of Menteith. Muireadach gained the Mormaerdom by challenging the rights of the current Mormaer, his elder brother, also called Muireadhach, hence Muireadhch Mór

Muireadhach I, Earl of Menteith

Muireadhach I is the second known Mormaer of Menteith. He succeeded his father Gille Críst by the time of his appearance in a charter of William the Lion confirming the church at Moulin to Dunfermline Abbey. The charter is undated, but must have been written between 1189 and 1198...

 (in English

English language

English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

, "the elder"). The case apparently went to arbitration, and the king decided on the right of Muireadhch Óg. On December 13, 1213, Muireadhach Mór resigned the Mormaerdom, taking lesser lands and titles in compensation.

Muireadhach Óg was one of the seven mormaers present at the coronation of King Alexander II of Scotland

Alexander II of Scotland

Alexander II was King of Scots from1214 to his death.-Early life:...

 in 1214, and Muireadhach accompanied the king in the funeral cortège of his father and predecessor, King William of Scotland. Muireadhach Óg appears again in the company of the king in 1224, when he appears on a charter issued at Stirling

Stirling

Stirling is a city and former ancient burgh in Scotland, and is at the heart of the wider Stirling council area. The city is clustered around a large fortress and medieval old-town beside the River Forth...

 granting rights to Paisley Abbey

Paisley Abbey

Paisley Abbey is a former Cluniac monastery, and current Church of Scotland parish kirk, located on the east bank of the White Cart Water in the centre of the town of Paisley, Renfrewshire, in west central Scotland.-History:...

. In a document dating to 1226, Muireadach is referred to as "Sheriff of Stirling". He had no legitimate sons, but two daughters, Isabella

Isabella, Countess of Menteith

Isabella, Countess of Menteith was the eldest daughter of Muireadhach II, Mormaer of Menteith. When the old mormaer died without legitimate male heir in 1233, the province passed to Isabella....

(Iosbail), who married a Comyn

Comyn

Comyn can refer to:* Clan Comyn, another name for Clan Cumming.People* Dan Comyn, an Irish cricketer.* Stephen George Comyn, Naval chaplain to Lord Nelson* Valens Comyn, English MP* William Leslie Comyn, Californian shipbuilder...

, and Maria

Mary I, Countess of Menteith

Maire inghean Mhuireadhaich or Mary, daughter of Muireadhach II, Mormaer of Menteith, was Countess of Menteith, successor to her sister Isabella . She inherited the title from her father, and married Walter Bailloch, son of Walter Stewart, 3rd High Steward of Scotland...

(Màire), who married a Stewart; both became countesses in their own right.

Muireadach was dead by January, 1234, when his successor appears with the comital title for the first time.