Note 235 — MINOR NARRATIVES.
Reading edition
Styrbiörn, son of King Olaf, ruled Sweden in connection with Eric, called the Victorious. Styrbiörn's ambition, to which was added the crime of murder, led to his disgrace. He joined the vikings, adding sixty ships to their force. He was killed, as stated, in 984, in a battle with his uncle near Upsula.