The runestone stands at the ruin of St Laurentius’ (Lars’) Church.

“Sven had the stone erected in memory of  …his father and Frödis in memory of  Ulv, her husband. God help his soul”.

The names Sven and Ulv are common in the runic inscriptions but Frödis has only one other
known bearer from the Viking Age and that is the daughter of Erik the Red who lived in Vinland for some time. The fragments of this stone have been found in two different places in Sigtuna. As important parts of the runes are damaged, the name of the father, in whose memory the stone was erected, is not readable any more.

Source:
Source: https://www.sigtuna.se (Text: Thorgunn Snædal (National Board of Antiquities) and Sten Tesch (Arkistoria). English translation reviewed by Karin Atterlöf Perslow.)