Matilda wa Ringelheim
Vita Mathildis reginae antiquior (c. 974,  written for her grandson Otto II), ed. Bernd Schütte. Die Lebensbeschreibungen der Königin Mathilde. MGH SS rer. Germ. in usum scholarum 66. Hanover, 1994. 107-142. Available from the Digital MGH; ed. Rudolf Koepke. MGH SS 10. 573-82; tr. in Sean Gilsdorf, Queenship and Sanctity, 71-87.