Towards the end of the 8th century, the Viking invasions began, forcing the Picts and Gaels to cease their historic hostility to each other and to unite in the 9th century, forming the Kingdom of Scotland.
The Kingdom of Scotland was united under the House of Alpin, whose members fought among each other during frequent disputed successions.
The Battle of Brunanburh (937)
The Battle of Luncarty (980)
The Battle of Mortlach (1010)
The Battle of Largs (1263)
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