The Picts are a Christian culture in Viking Conquest. The Picts are some of the strongest and fiercest warriors in the North. Native to the Highlands of Scotland, the Picts have resisted invader after invader, making them a very strong force in Great Britian. Only the Gaels of Ireland could slightly damage the Picts and they were merged together and formed the only Pictish Kingdom in Scotland, the Kingdom of Alban, and formed Scuin as their capital.
The Kingdom of Alban has small parts to play in the main storyline, but over all, has little purpose for the storyline. As the only Kingdom in the Highlands (save for a few forts in Laithlind's control) and with two big towns, the Kingdom of Alban is in a great place strategically.
The Picts are the strongest group of clans in the Highlands and shared Scotland with the Lowland Caledones. After the Roman invasion of Britian, the Caledones were willing to trade with the Romans but the Picts, who prevented the Romans to go further north, attacked the Romans whenever they tried trading. This caused the Romans to build Hadrian's Wall, to protect the Roman frontier and the trade. After the Romans left Britian, the Picts and Gaels invaded England, but were stopped by the Anglo-Saxon mercenaries. Once the Anglo-Saxons took over most of Great Britain, they turned their eyes to Scotland. Ready to resist the invaders, the Highland Kingdom of Alban and the Lowland Kingdom of Alt Clut (Strathclyde) pushed the Anglo-Saxons back and retained ownership of their lands.