Forgotten Medieval Kingdom's Grand Castle Emerges After Decades of Research

Archaeologists recently announced the discovery of a grand castle affiliated with a long-forgotten medieval kingdom and nestled on an island in Scotland.

The Society of Antiquaries of Scotland announced the discovery, nearly 30 years in the making, on Sept. 17. 

The discovery was made at the Finlaggan archaeological site on Islay, according to the BBC. Islay, a remote island off Scotland's western coast, is roughly 70 miles west of Glasgow. 

Archaeologist David Caldwell directed excavations of the site between 1989 and 1998. In his recently published findings, he argued that Finlaggan was a power seat for the Lordship of the Isles, a semi-independent Gaelic kingdom during the late Middle Ages.