Royalty in my family - Kings of Scotland

Crínán of Dunkeld was the lay abbot of the diocese of Dunkeld, and perhaps the Mormaer of Atholl. Crínán was progenitor of the House of Dunkeld, the dynasty which would rule Scotland until the later 13th century.
Crinán was married to Bethoc, daughter of King Malcolm II of Scotland (reigned 1005–1034). As Malcolm II had no son, the strongest hereditary claim to the Scottish throne descended through Bethóc, and Crinán's eldest son Donnchad I (reigned 1034–1040), became King of Scots. Some sources indicate that Malcolm II designated Duncan as his successor under the rules of tanistry because there were other possible claimants to the throne.
Crinán's second son, Maldred of Allerdale, held the title of Lord of Cumbria. It is said that from him, the Earls of Dunbar, for example Patrick Dunbar, 9th Earl of Dunbar, descend in unbroken male line.
Crinán was killed in battle in 1045 at Dunkeld.
Sir Iain Moncreiffe argued he belonged to a Scottish sept of the Irish Cenél Conaill royal dynasty.
The monastery of Saint Columba was founded on the north bank of the River Tay in the 6th century or early 7th century following the expedition of Columba into the land of the Picts. Probably originally constructed as a simple group of wattle huts, the monastery - or at least its church - was rebuilt in the 9th century by Kenneth I of Scotland (reigned 843–858). Caustantín of the Picts brought Scotland's share of the relics of Columba from Iona to Dunkeld at the same time others were taken to Kells in Ireland, to protect them from Viking raids. Dunkeld became the prime bishopric in eastern Scotland until supplanted in importance by St Andrews since the 10th century.
While the title of Hereditary Lay Abbot was a feudal position that was often exercised in name only, Crinán does seem to have acted as Abbot in charge of the monastery in his time. He was thus a man of high position in both clerical and secular society.

To the Irish annals which recorded his death, Máel Coluim was ard rí Alban, High King of Scotland. In the same way that Brian Bóruma, High King of Ireland, was not the only king in Ireland, Máel Coluim was one of several kings within the geographical boundaries of modern Scotland: his fellow kings included the king of Strathclyde, who ruled much of the south-west, various Norse-Gael kings of the western coasts and the Hebrides and, nearest and most dangerous rivals, the Kings or Mormaers of Moray. To the south, in the kingdom of England, the Earls of Bernicia and Northumbria, whose predecessors as kings of Northumbria had once ruled most of southern Scotland, still controlled large parts of the south-east.

Kenneth was killed in 995, the Annals of Ulster say "by deceit" and the Annals of Tigernach say "by his subjects". Some later sources, such as the Chronicle of Melrose, John of Fordun and Andrew of Wyntoun provide more details, accurately or not. The simplest account is that he was killed by his own men in Fettercairn, through the treachery of Finnguala (also called Fimberhele), daughter of Cuncar, Mormaer of Angus, in revenge for the killing of her only son.

Doniualdus son of Constantini held the kingdom for 11 years [889–900]. The Northmen wasted Pictland at this time. In his reign a battle occurred between Danes and Scots at Innisibsolian where the Scots had victory. He was killed at Opidum Fother [modern Dunnottar] by the Gentiles.

The change from king of the Picts to king of Alba is seen as indicating a step towards the kingdom of the Scots, but historians, while divided as to when this change should be placed, do not generally attribute it to Donald in view of his epithet. The consensus view is that the key changes occurred in the reign of Constantine II (Causantín mac Áeda), but the reign of Giric has also been proposed.

Eochaid came to power as king of Dál Riata in 726, presumably deposing Dúngal mac Selbaig. Selbach may have tried to restore his son to power, and fought against Eochaid's supporters at Irros Foichnae in 727, but without apparent success. The annals vary as to whether the despatch of a fleet from Dál Riata to Ireland to aid Flaithbertach mac Loingsig in his war with Áed Allán should be placed in the reign of Eochaid, or that of his successor.

He first appears in 622, when the Annals of Tigernach report his presence at the battle of Cend Delgthen (probably in the east midlands of Ireland) as an ally of Conall Guthbinn of Clann Cholmáin. This is the only battle known where Domnall Brecc fought on the winning side.
Domnall suffered four defeats after he broke Dál Riata's alliance with the Cenél Conaill clan of the Uí Néill. In Ireland, Domnall and his ally Congal Cáech of the Dál nAraidi were defeated by Domnall mac Áedo of the Cenél Conaill, the High King of Ireland, at the Battle of Mag Rath (Moira, County Down) in 637. He also lost to the Picts in 635 and 638 and lastly to Eugein I of Alt Clut at Strathcarron in 642, where he was killed.