According to Snorri, Ragnvald was the son of jarl Ulf Tostesson and Ingeborg and the foster-son of Þorgnýr the Lawspeaker.
Ragnvald Ulfsson the Old, jarl of Vastergotland and possibly father of King Stenkil of Sweden
Ragnvald Ulfsson (beginning 11th century) was a jarl of Västergötland or Östergötland
Ragnvald Ulfsson | Gunnbjörn Ulfsson | Birger Ragnvald Sevaldson |