I want to know the answer to the following question:
How long did Louis the Pious reign?
All the background I'm provided with is that "Charlemagne planned to continue the Frankish tradition of dividing his kingdom between all his heirs, but was unable to do so as only one son, Louis the Pious (r. 814–840), was still alive by 813.". Is that enough to answer the question?
Answer: no