What happened to Charlemagne's mother?

Charlemagne's mother was Bertrada of Laon, also known as Bertrada the Elder. She was married to Pepin the Short, Charlemagne's father, and played a significant role in the political landscape of the time. After Pepin's death in 768, Bertrada lived for several more years, but her exact fate and date of death are not well-documented, leading to some ambiguity in historical records. She is often remembered for her influence in the Merovingian court and her role as a mother to one of history's most notable rulers.