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St. Jennifer of Athelburgh is not a widely recognized saint in Christian tradition, and there seems to be some confusion surrounding her name. It is possible you are referring to St. Æthelburga of Athelburh, an Anglo-Saxon abbess and saint, known for her piety and leadership in a convent in England during the 7th century. She is often celebrated for her role in promoting Christianity and her contributions to monastic life. If you meant a different figure, please provide more context or clarify the name.
Of education.I can find no patronages for St. Jennifer of Athelburgh. In fact, I can find very little information about her. The name Jennifer is also contemporary derivative of St. Genevieve, St. Jane and St. Joan. Some of these saints do have patron saint duties.There is no "St. Jennifer" that I was able to find. However, once we note that the name "Jennifer" is a Cornish variant of the Welsh name "Guinevere" then we come upon a possible solution. St. Winifred of Wales is also known as "St. Guinevere of Wales." She is probably the closest thing to a "St. Jennifer" that we have in our current list of saints.Jennifer is a contemporary derivative of Genevieve and, yes, there is a Saint Genevieve.