The legendary kings of Denmark were, according to legend, the monarchs of Denmark, the Danes, or specific lands of Denmark who preceded Gorm the Old, a king who reigned c. 930s to c. 960s and is the earliest reliably attested Danish ruler. Gorm's son, Harald Bluetooth, oversaw the widespread Christianization of Denmark, meaning that the legendary kings listed here are those from before Christianization and are predominantly pagan. Earlier kings may be partly historical, but are either semi-legendary or entirely mythological. Some are based on earlier euhemerised stories.