Cowal before it was the defended medieval homestead of the MacEwens; at first there was a palisaded enclosure, and then a promontory fort with a timber rampart. The remote areas in the north east of Cowal, which were theoretically under the dominion of Clan Lamont, were used by Scottish kings for hunting; indeed, Cowal was the last part of Britain to have wild boar. When King John Balliol was threatened by his rival, Robert de Bruys, Balliol's ally, the king of England, established Henry Percy at Carrick Castle, in the region; likewise Dunoon Castle further south. De Bruys expelled the English
Cowal Highland Gathering in early BBC television broadcasts. As the last Major competition in the season, Cowal was historically where the Champion of Champions title for the best overall performance in the major competitions of the season was decided and awarded. Until the World Pipe Band Championships started in Glasgow in 1947, Cowal was regarded as the premier pipe band competition. Following discussions between the Gathering Committee and the RSPBA, it was decided that after 2013 Cowal would lose its status as a Major competition due to difficulties accommodating the number of bands. The pipe band competition continues to be held but with