In the churchyard by the Medieval Abbey in Sigtuna is a rune stone and a couple of fragments built into a small building.
U380 & U381 – “Åsbjörn och kus lät…Gud hjälpe anden…efter Orm…”U379 – “The Frisian guild brothers let raise this stone after Torkel, thier guild brother. God help his spirit. Torbjörn cut.”