It takes its name from the historic Kingdom of Strathclyde.
According to this explanation, the area was purchased from the Kingdom of Strathclyde, possibly with loot from Ireland.
Later known as the Kingdom of Strathclyde, it was one of the best attested of the northern British kingdoms.
Welsh: Owain) was ruler of the Kingdom of Strathclyde for some period in the early tenth century.
Dyfnwal I was ruler of the Kingdom of Strathclyde for some period in the early tenth century, and perhaps the late ninth century.
From the fifth century until the ninth, the castle was the centre of the independent British Kingdom of Strathclyde.
One of these, Northumbria, soon expanded into the north as far as the Kingdom of Strathclyde.
Amlaíb probably took refuge in the Kingdom of Strathclyde, returned to Dublin in 945.
Contrary to some popular conceptions, there is no evidence that Galloway was ever part of the Kingdom of Strathclyde.
Smyth speculates that control over the Kingdom of Strathclyde might have been a major factor.