The chapters on the Scottish earls and lords which are set out below are arranged in approximately chronological order of creation of the titles.The first group of seven earldoms, Angus, Atholl, Caithness, Fife, Mar, Moray and Strathearn, corresponds to the seven provinces into which Scotland north of the Firths of Forth and Clyde was divided in the 9th century, reputedly ruled by seven brothers.His birth date range is estimated on the assumption that he was the father of his successor, Earl Gillbride/Gibbon/Gilbert (see under the Earls of Caithness, below)."Domino Magnus filio Comitisdomino Anegus filio Comitis" witnessed the charter, dated to [1226/39], which confirmed the donation of "terra de Othirlonyterram de Kenny" to Aberbrothoc by "Valterum filium Turpini".The separate primary source references to an individual named Magnus indicate that this suggestion is probably incorrect.From a chronological point of view, Magnuss estimated birth date range as shown above suggests that he was either the son of Gillbride Earl of Angus by a second marriage or that he was the son of Earl Gilchrist.
However, Balfour Paul refers to a charter "noted in an old Inventory of Oliphant writs, made about 1594, and preserved in the General Register House" which states that King Alexander II granted "the erledom of South Kaythnes" to "Magnus sone to Gylcryst sum tyme erle of Angus".Gillbride was the first individual to be styled (in 1135) Earl of Angus and members of his family succeeded him in the title until the mid-13th century. The Pictish Chronicle names Conchar Mormaer of Angus as father of Fynebole Lady of Fettercairn, who murdered Kenneth II King of Scotland in 995 in revenge for the slaughter of her only son oat Dunsinane. The Chronicle of the Scots and Picts dated 1177 records that "Kynnath mac Malcolm" reigned for 24 years and 2 months, was killed "a suis hominibus in Fetherkern" through the treachery of "Finuele filie filie Cunthar comitis de Anguss" whose only son had been killed by the king.The Pictish Chronicle names Conchar Mormaer of Angus and father of Fynebole Lady of Fettercairn who murdered Kenneth II King of Scotland in 995 in revenge for the slaughter of her only son oat Dunsinane . "Alexander nepos regis Alexandri, Beth comes, Gospatricius Dolfini, Mallus comes, Madach comes, Rothri comes, Gartnach comes, Dufagan comes, Willelmus frater regine, Edwardus constabularius, Gospatricius filius Walthef, Ufieth Alfricus pincerna" witnessed the charter dated to [1114/15] under which "Alexanderrex Scottorum filius regis Malcolmi et regine Margerete et Sibilla regina Scottorum filia Henrici regis Anglie" reformed Scone Abbey, son of --- (-). David I King of Scotland granted protection to the clerics of Deer by undated charter witnessed by "Donchado comite de Fib et Malmori d Athotla et Ggillebrite comite d Engus et Ghgillcomded Mac Aed"] [--- of Dunbar, daughter of GOSPATRICK Earl & his wife ---.It is assumed therefore that Earl Malcolm resigned Caithness, or his claims thereto, in favour of Magnus.The precise parentage of Earl Magnus has been the subject of considerable speculation.