However, while Birka was abandoned in the mid-10th century, the royal estate was apparently not as the runestone U 11 from around 1070 which claims to have been carved for the king was erected next to the royal mounds.
While Birka was abandoned in the mid-10th century, the royal estate apparently remained intact as evidenced by a runestone U 11 from around 1070 which is believed to have been carved for the king and placed near the royal mounds.