Ingvar or Yngvar was the son of Östen and reclaimed the Swedish throne for the House of Yngling after the Swedes had rebelled against Sölvi. He is reported to have fallen in battle in Estonia and been buried there. Although the account of Ingvar is semi-legendary, the discovery of two boat grave sites in Salme, modern Estonia has confirmed that a similar historic event took place in the 8th century.

The Ynglings were a dynasty of kings, first in Sweden and later in Norway, primarily attested through the poem Ynglingatal. The dynasty also appears as Scylfings in Beowulf. When Beowulf and Ynglingatal were composed sometime in the eighth to tenth centuries, the respective scop and skald (poet) expected his audience to have a great deal of background information about these kings, which is shown in the allusiveness of the references.