Gorm the Old was the first Danish monarch who is known to be a real person. All reigns before him are dubious. Denmark has one of the longest running unbroken lines of succession in the world, second only to that of the Japanese emperors.
mentioned 936, died earliest 958: Gorm the Old (Gorm den Gamle) note!: A mix of two person, both kings by danes, Guthrum of East Anglia and Gorm the English of Denmark and Norway
