They were important benefactors of the church in tenth century Saxony with members including the Saint Emma of Lesum and her brother Bishop Meinwerk of Paderborn. Matilda's grandmother Matilda I was abbess at Herford Abbey. About 940 one Count Immad of the Immedinger dynasty established a convent of nuns at Ringelheim in Eastphalia. Queen Matilda herself upon the death of her husband in 936 donated Quedlinburg Abbey, where she is also buried.
According to the Res gestae saxonicae by the chronicler Widukind of Corvey, Matilda's father, the Westphalian count Dietrich, was a descendant of dux Widukind. A sister of her married Count Wichmann the Elder from the House of Billung. A genealogy has not yet been conclusively established.