Carrick is a historical district located in the southwestern part of Scotland.
It originally belonged to Sir Galleron, but Arthur annexed it and gave it to Gawaine. Galleron arrived at a feast and challenged Gawaine for ownership of the land. The fight ended in a draw, but Gawaine graciously returned the country to Galleron anyway.
Carrick | 400-600 AD
The area now known as Carrick was part of the larger region of Strathclyde, a kingdom that encompassed parts of present-day southwestern Scotland and northern England, including areas such as Ayrshire, Lanarkshire, and Dumfries and Galloway.
At the time, the region was inhabited by various Celtic peoples, including the Britons. The Britons were part of the larger Celtic culture and had their own distinct language and customs. The kingdom of Strathclyde had its own ruling dynasty and was often influenced by neighboring kingdoms and cultures, such as the Picts and later the Angles and Vikings.
During this period, the area would have been predominantly rural, with agriculture being the primary economic activity. Communities were likely centered among farming, livestock rearing, and fishing, with settlements ranging from small villages to larger hillforts or fortified sites.
The early Christianization of the area would have also been taking place during this period. Christian missionaries, such as Saint Ninian and Saint Kentigern (also known as Saint Mungo), played significant roles in spreading Christianity in the region. Various early Christian stone crosses and carved stones have been discovered in the area, suggesting the presence of an early Christian community.
Source
The Awntyrs off Arthure at the Terne Wathelyn | Late 14th century