U 310
Like the previous runic inscription, this inscription is in the style Pr4 (second half of the 11th century) and it was made in memory of Ingvarr and Ragnvaldr. However, this one was made on the orders of Estrid (Ástríðr), Ingvar's wife who was not Ragnvald's mother.
Read more about this topic: Hargs Bro Runic Inscriptions