Valdar

Valdar is named as one of the Danes in Guðrúnarkviða II (stanza 19):

In this poem, Valdar is not explicitly identified as a king of the Danes, and the poem earlier mentions Guðrún visiting the "high hall of Hálfr" and staying in Denmark for seven seasons with Þóra, daughter of Hákon. Valdar appears after this, as part of the entourage of Guðrún's brothers Gunnar and Hogni, bringing her gifts to placate her after the death of Sigurðr. This story is also told in section 34 of Volsunga saga, in which the name Valdar is replaced with Valdamar, and Hálfr is explicitly referred to as king of Denmark.

According to Hversu Noregr byggdist, a Valdar was the son of Roar (Hroðgar) of the house of Skjöldung (Scylding). This source makes Valdar the father of Harald the Old, the father of Halfdan the Valiant, the father of Ivar Vidfamne. If he is of the same origin as the Valdar of Hervarar saga, this account adds four generations (Harald the Old, Halfdan the Valiant, Ivar Vidfamne and effectively Ivar's daughter Alfhild/Auðr who was Harald Wartooth's mother according to all accounts) between Valdar and Harald Wartooth, who was Valdar's son according to the Hervarar saga.

The Skjöldunga saga tells that a Valdar disputed that Rörek, the cousin of Helgi (Halga) succeeded Hrólfr Kraki (Hroðulf) as the king of the Daner. After the war, Rörek took Zealand, while Valdar took Skåne. If based on the same tradition as Hversu Noregr byggdist, Valdar had the right to claim the throne being the son of the former king Hróarr (Hroðgar).