Constantine MacAlpin

Constantine MacAlpin (abt. 0836 - 0877)

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Constantine "Causantin mac Cináeda" MacAlpin aka mac Cináeda
Born about in Iona, Argyll, Scotlandmap
Ancestors ancestors
Husband of — married [date unknown] [location unknown]
Descendants descendants
Died in Inverdovat, Angus, Scotlandmap
Profile last modified | Created 12 May 2012 | Last significant change: 14 Nov 2018
16:33: Michael Thomas edited the Biography for Constantine MacAlpin (abt.0836-0877). [Thank Michael for this]
This page has been accessed 8,654 times.

Categories: House of Alpin.

Preceded by
Donald I
King of the Picts
13 April 862 - 877
Succeeded by
Aodh I
House of Alpin tartan.
Constantine MacAlpin is a member of House of Alpin.
Join: Scottish Clans Project
Discuss: scottish_clans


Causantín or Constantín mac Cináeda (in Modern Gaelic, Còiseam mac Choinnich), the son of Kenneth MacAlpin, was a king of the Picts. He reigned from 863 until his death in 877. He is often known as Constantine I, in reference to his place in modern lists of kings of Scots, though contemporary sources described Causantín only as a Pictish king. A son of Cináed mac Ailpín ("Kenneth MacAlpin"), he succeeded his uncle Domnall mac Ailpín as Pictish king following the latter's death on 13 April 862. It is likely that Causantín's (Constantine I) reign witnessed increased activity by Vikings, based in Ireland, in Northumbria and in northern Britain. He died fighting one such invasion.

Constantine was a warrior king of grand ability and, during his long reign, he relentlessly opposed the savage Norsemen that came again and again to his lands. The Annals of Ulster say he killed the Viking leader Olaf who had made himself king in Dublin and thought to take Pictland from Constantine. The Annals say that Constantine caused the death of Artgal, king in Strathclyde and married his sister to Artgal's son, Run.

The 10th century Pictish Chronicle Cronica de Origine Antiquorum Pictorum records that "Constantinus filius Cinadi" ruled for 16 years. He succeeded his uncle as Constantine I King of Scotland.

Constantine was killed in battle, against the Vikings, at Inverdorat (Angus) (called the Black Cove), in 876. He was buried alongside his father at Iona. His only son Donald succeeded him


The name of his wife is not provided in Medlands. They had one son:[1]

  • Donald, killed at Dun-fother in 900, bur at Iona.

NOTE - this is Causantín mac Cináeda, the son of Kenneth MacAlpin [2] and not Causantín mac Fergusa [3]


  1. Medlands for Kenneth (Cináeda) MacAlpin
  2. Wikipedia : Causantín mac Cináeda
  3. Wikipedia : Causantín mac Fergusa


This person was created through the import of DR fam 9.ged on 14 September 2010.

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Images: 2
Constantine Of Scotland
Constantine Of Scotland

Constantine I MacAlpin, King of the Picts
Constantine I MacAlpin, King of the Picts


On 1 Oct 2018 at 00:42 GMT Valerie Willis wrote:

MacAlpin-23 and UNKNOWN-10325 appear to represent the same person because: merge needed, same name, same father - last of a long parallel upload of Dal Riata kings

On 4 Feb 2018 at 05:02 GMT Michelle Erskine wrote:

He appears to have his parentage linked to Gregor when the biography says Kenneth?

On 22 Apr 2017 at 06:39 GMT Sarah (Murtaugh) Heiney wrote:

UNKNOWN-34298 and MacAlpin-23 appear to represent the same person because: Clear duplicate

On 21 Feb 2017 at 12:17 GMT Fontaine Wiatt wrote:

Wikitree will not allow me edit her name.

On 21 Feb 2017 at 01:53 GMT Karen (Kraus) Harbert wrote:

Should the middle name be listed as mac Cinèda? Database Errors Project Auto correction is suggesting to do so.

Constantine is 36 degrees from Rosa Parks, 31 degrees from Anne Tichborne and 25 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.

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