Giric's name is associated with that of St Cyricus, who, as a small child, was martyred along with his mother during the Diocletianic persecution in the early fourth century. According to the Chronicles of the Kings of Scotland, St Cyricus was Giric's patron saint, not only because his name is homophonous with the Latin form of the saint's name, Ciricum, but also because the first church dedicated to St Cyricus was established during Giric's reign at a place called Ecclesgrieg in Aberdeenshire. The saint's feast day is 16 June, and on that day in 885 there was a solar eclipse, which has become associated with the kingship of Giric and Eochaid, inasmuch as not long after the occasion of the eclipse, the two "were expelled from the kingdom."
Relationship between Giric and Eochaid
Various theories have been put forward regarding the relationship between Eochaid and Giric, who by all accounts was the elder of the two. The Chronicle of the Kings of Alba, which was written in Latin, used the phrase alumnus ordinatorque to describe Giric's relationship to Eochaid. Translator T. H. Weeks chose to translate that phrase into English as "teacher and prime minister", yet in the same section offered "foster-son" for alumnus, translating "Eochodius, cum alumno suo, expulsus est nunc de regno" as "Eochaid with his 'foster-son' was then thrown out of the kingdom". There is a tendency in popular history books and web sites to refer to the two as "cousins" or “first cousins once removed". However, this cousin kinship is only speculation since the ancestry of Giric is obscure. Rhun, the father of Eochaid, is known to have been "a king of the Britons", but little is known of Dungal, the father of Giric, which may be the reason for the speculation that he did not have royal lineage. Perhaps a writer for the popular web site Undiscovered Scotland found the best solution, referring to Giric as Eochaid's "rather shadowy kinsman". Two scholars have defined the two in political rather than kinship terms. A. Weeks, commentator, speculated, “Possibly Giric was not of royal blood, so he used Eochaid as a puppet.” In 1904, Sir John Rhys, professor at Oxford, reached a similar conclusion, positing that “the real relation in which Girg probably stood to Eochaid was that of a non Celtic king of Pictish descent wielding the power of the Pictish nation with Eochaid ruling among the Brythons of Fortrenn more or less subject to him.” What is known of the two is that in 878 Giric killed Aed “in battle” in the town of Nrurim, which was probably north of Stirling. Then Giric and Eochaid, whatever their relationship, ruled jointly for eleven years.
Son of Fortune
The Prophecy of Berchán, an 11th-century verse history of Scots and Irish kings presented as a prophecy, is a notably difficult source. As the Prophecy refers to kings by epithets, but never by name, linking it to other materials is not straightforward. The Prophecy is believed to refer to Giric by the epithetMac Rath, "the Son of Fortune". The entry on Giric in the Chronicle of the Kings of Alba is perhaps corrupt. It states:
And Eochaid, son of Run, the king of the Britons grandson of Kenneth by his daughter reigned for eleven years; although other say that Giric, the son of another, reigned at this time, because he became Eochaid's foster-father and guardian. And in second year, Áed, Niall's son, died; and his ninth year, on the very day of Cyricus, an eclipse of the sun occurred. Eochaid with his foster-father was now expelled from the kingdom.
Kenneth is Kenneth MacAlpin ; Áed, Niall's son is Áed Findliath, who died on 20 November 879; and St Cyrus's day was 16 June, on which day a solar eclipse occurred in 885.
Gregory the Great
By the 12th century, Giric had acquired legendary status as liberator of the Scottish church from Pictish oppression and, fantastically, as conqueror of Ireland and most of England. As a result, Giric was known as Gregory the Great. This tale appears in the variant of the Chronicle of the Kings of Alba which is interpolated in Andrew of Wyntoun's Orygynale Cronykil of Scotland. Here Giric, or Grig, is named "Makdougall", son of Dúngal. List "D", which may be taken as typical, contains this account of Giric:
Giric, Dungal's son, reigned for twelve years; and he died in Dundurn, and was buried in Iona. He subdued to himself all Ireland, and nearly England; and he was the first to give liberty to the Scottish church, which was in servitude up to that time, after the custom and fashion of the Picts.
Giric's conquests appear as Bernicia, rather than Ireland, in some versions. William Forbes Skene saw a connection between this and the account in the Historia de Sancto Cuthberto which claims that soon after the death of King Halfdan, the Northumbrians and the Northmen united under King Guthfrith to defeat a Scots invasion. This account is not found in the Poppleton Manuscript. The lists known as "D", "F", "I", "K", and "N", contain a different version, copied by the Chronicle of Melrose.
Ut regem nostrum Girich
In a recent discussion of the "Dunkeld Litany", which was largely fabricated in Schottenklöster in Germany in late Medieval and Early Modern times, Thomas Owen Clancy offers the provisional conclusion that, within the emendations and additions, there lies an authentic 9th century Litany. The significance of this Litany for the question of Giric's authenticity and kingship is contained in a prayer for the king and the army, where the king named is Giric:
Ut regem nostrum Girich cum exercito suo ab omnibus inimicorum insiidis tuearis et defendas, te rogamus audi nos.
He shall rule over Alba as one Lord
argues that the association of Giric and Eochaid in the kingship is spurious, that Giric alone was king of the Picts, which he claimed as the son of daughter of Kenneth MacAlpin, and that the report that he was Eochaid's guardian is a misreading of uncle. A.P. Smyth proposed that Giric was a nephew of Kenneth MacAlpin, the son of his brother Donald MacAlpin, which appears to rest on what is probably a scribal error. The entry also states that an otherwise unknown Causantín, son of Domnaill was king. Finally, Benjamin Hudson has suggested that Giric, rather than being a member of Cenél nGabráin dynasty of Kenneth MacAlpin and his kin, was a member of the northern Cenél Loairn-descended dynasty of Moray, and accepts the existence of Giric's brother Causantín.