Ráðbarðr

{{Short description|Legendary king of Garðaríki}}

{{more references|date=July 2023}}

Ráðbarðr, Raðbarðr or Rathbarth (late 7th century) was a legendary king of Garðaríki, who appears in Sögubrot and the Lay of Hyndla.

Sögubrot tells that he married the fugitive princess Auðr the Deep-Minded, the daughter of Ivar Vidfamne,{{cite web|url=https://begunov.spb.ru/indexd1eb.html|title=Глава 16. НОРМАННЫ И ВОСТОЧНЫЕ СЛАВЯНЕ. VIII - СЕРЕДИНА IX вв.|last=Begunov|first=Yury}} {{Better source needed|reason=This citation is from Yuri Constantinovich Begunov, a promoter of antisemitic conspiracy theories and the Protocols of the Elders of Zion.|date=February 2024}} without the consent of her father king Ivar Vidfamne, who soon departed to punish his daughter. He died en route, however, and so Ráðbarðr helped Auð's son Harald Wartooth claim his maternal grandfather's possessions in Sweden and Denmark.

Ráðbarðr and Auðr had a son together named Randver.