Constantine son of Fergus, king, d. 820

Introduction

Constantine m. Fergusa was king over both Picts and Dál Riata 789?-820. According to Regnal list D, he founded Dunkeld, possibly in collaboration with Diarmait abbot of Iona (Clancy 1996 p 114). His name appears on the Dupplin cross, and possibly in the Dunkeld Litany (ibid p 120-1, Forbes lvii, lxi) where he may be the Constantine Rex, in the list of martyrs, and again under confessors and monks. The Constantine Rex under martyrs is perhaps more likely to be Constantine m. Cinaeda qv, however, who was killed fighting the Vikings. By the early 10th century (perhaps by 830) Mart T is not sure if the Constantine commemorated on the 11th March is a British saint called Constantine (Constantini Briton) or this Constantine son of Fergus. The fact that he was considered at all may indicate his reputation for sanctity, or perhaps simply his support of the church. He and his nephew (and possibly his brother) are commemorated in a Northumbrian Liber vitae (Anderson 1973, 8-9) and Dunkeld may have been a Céli Dé community (Clancy 1996, 12), which would have been of interest to the compilers at Tallaght, another community of the Céli Dé. See Watson 26 p 189 and Dumville 1999.

Gender

Male

Associated places

Dunkeld

Obituary

AU 820 Custantin m Fergus, rex Fortreinn moritur.

Related Saints

Belongs to the group Constantine (ns)

Related Personal Names

Name

Custantin (certain)

Feast days

Day of Year

March 11

Calendar

Martyrology of Tallaght

Source code

Mart.T

Source title

Martyrology of Tallaght

Editors

Best, R. I. and Lawlor, H. J.

Year

1931

Notes

From the Book of Lesinter and MS 5100-4 in the Royal Library, Brussels.

Quote from source

Constantini Briton * meic Fergusa do Cruthnechaib. Constantine a Briton or son of Fergus of the Picts.

Notes

* indicates 'or'

Day of Year

March 11

Calendar

Martyrology of Gorman

Source code

Mart. G

Source title

Martyrology of Gorman

Editors

Stokes, Whitley

Year

1895

Notes

Full title is Félire Húi Gormáin, The Martyrology of Gorman edited from a manuscript in the Royal library, Brussels, with a preface, translation, notes and indices. It is published by the Henry Bradshaw Society.

Quote from source

Constantin Britt buanraith gloss: Constantin mac Feargusa do Chruithnechaibh nó Brit iar n-araile. abb Raithne mo Chuda. 'Constantine son of Fergus of the Picts, or, according to others, a Briton: abbot of Raithen mo Chuta.'

Day of Year

March 11

Calendar

The Martyrology of Donegal

Source code

Mart. Do.

Source title

The Martyrology of Donegal

Editors

Todd, J. H.

Year

1864

Notes

Other author to be specified.

Quote from source

[Constaintin, riogh manach i Rathuin ag Machutae, mac Fergusa] ['Constaintin, royal-monk at Rathain with Mochuda, son of Fergus.'] This is added in the later hand. He is not in O'Clery's index.