Snorri Sturluson relates that Yngvi was an accomplished king: a great warrior who always won his battles, the master of all exercises, generous, happy and sociable.
One day in the autumn, Yngvi returned to Uppsala from a very successful Viking expedition which had rendered him famous.
He used to spend time at the drinking table until late in the night, like Bera, and they found it pleasant to talk to each other.
One evening, the jealous Alf entered the hall and saw Yngvi and Bera converse on the high seat.
The poem in Ynglingatal: The Historia Norwegiæ presents a Latin summary of Ynglingatal, older than Snorri's quotation: Cujus [Hogne, i.e. Agne ] filius Ingialdr in Swethia a fratre suo ob infamiam uxoris ejus occisus est, quæ Bera dicta est (hoc nomen latine sonat ursa).
Post hunc filius ejus Jorundr [...][5] His [Agne's] son, Ingjald, was murdered in Sweden by his own brother because he had brought discredit on the latter's wife, whose name was Bera (Ursa in Latin).