Sæthryth was sent to the Abbey of Faremoutiers in Brie to be educated, and became a Benedictine nun, under its foundress Saint Burgundofara, whom she succeeded as abbess. Saints Seaxburh, Ethelburga, Etheldreda and Withburga were half-sisters.
- Wragg, Stefany. Early English Queens, 650–850, Taylor & Francis, 2022, p. 222 ISBN 9781000595222
- Feast day List - St. Saethryth - Saints & Angels - Catholic Online
- Saint of the Day, July 7: Sethrida (Saethryth) SaintPatrickDC.org. Retrieved 2012-03-05.
- Feast day List - February - Saints & Angels - Catholic Online