Bertrada combines the Old German beraht (bright) and rāt (counsel) — "bright counsel." **Bertrada of Laon (c. 720-783)** was the wife of Pepin the Short and **mother of Charlemagne** — one of the most influential women of the Carolingian dynasty.
Buried at Saint-Denis.
Bertrada reduces to four — the number of Carolingian queen.