| Who is it? | King of Aquitaine, King of Franks & Co-Emperor (Holy Roman Empire) |
| Died On | 20 June 840(840-06-20) (aged 61–62)\nIngelheim |
| Birth Sign | Taurus |
| Reign | 781–814 |
| Coronation | By Pope Stephen IV: 5 October 816, Reims |
| Predecessor | Charles I as King of the Franks |
| Successor | Pepin I |
| Burial | Abbey of Saint-Arnould |
| Spouse | Ermengarde of Hesbaye Judith of Bavaria |
| Issue | Lothair I Pepin of Aquitaine Louis the German Charles the Bald |
| House | Carolingian |
| Father | Charlemagne |
| Mother | Hildegarde |
Louis the Pious, a prominent ruler of the Frankish Empire and Co-Emperor of the Holy Roman Empire, is believed to have a net worth ranging from $100,000 to $1 million in 2024. As the son and successor of Charlemagne, Louis inherited a vast empire and enjoyed great wealth and power during his reign. Known for his strong devotion to Christianity and commitment to strengthening the Holy Roman Empire, Louis established himself as a formidable ruler. His estimated net worth reflects the extensive lands, resources, and treasures under his control, as well as his influence over a significant portion of Europe during his time.
On Lothair's return to Italy, Wala, Jesse, and Matfrid, formerly count of Orléans, died of a pestilence. On 2nd February 835 at the palace Thionville, Louis presided over a general council to deal with the events of the previous year. Known as the Synod of Thionville, Louis himself was reinvested with his ancestral garb and the crown, symbols of Carolingian rulership. Furthermore, the penance of 833 was officially reversed and Archbishop Ebbo officially resigned after confessing to a capital crime, whilst Agobard of Lyon and Bartholmew, Archbishop of Narbonne were also deposed. Later that year Lothair fell ill; once again the events turned in Louis favour.
By his first wife, Ermengarde of Hesbaye (married ca. 794–98), he had three sons and three daughters:
