Estrid was the grandmother of Jarlabanke. They were christians upper class people who lived in Täby-Vallentuna during the Viking Age. They left several stones behind.
Kristina Svensson: Roslagsleden nära Mörtsjöspåret/Sjöslingan och södra Fjäturen. Liten bit uppför en backe bara. Stenen är rest av Ingefast (Estrids son) och Häming (hans son) till minne av Rangfrid som var maka/moder.
Kristina Svensson: There are several runestones around Vallentuna churck. The largest and most famous one, U212, has text on both sides. It is commissioned by Jarlabanke.