Constantine I, King (scotland) : All Data
Constantine I was a king who ruled over the Kingdom of Scotland from 876 to 877. During his short reign, he faced the Viking invasions that plagued the region. One of the most significant wars that occurred during his tenure was the Battle of Dollar in 876, where Constantine I led his forces against the Vikings, resulting in a Scottish victory. This conflict was consistent with the calculated timespan of his rule, showcasing his determination to defend his kingdom against external threats.