I’ve been reading about Hildegard Von Bingen and noticed that she is not found in my Daily Roman Missal on her feast day or in the 1962 missal that I have. I looked and she is generally regarded as a saint even though she wasn’t formally canonized. I was hoping to find out why she wasn’t formally canonized and if she can still be a patron saint of someone though she was not formally canonized. Also, since she wasn’t formally canonized, why does NewAdvent.com have her in the list of saints?
Her feast day is September 17th