https://en.wikipedia.org/wiki/Veritable_Records_of_the_Joseon_Dynasty

An oft-cited story in the sillok about King Taejong falling off his horse has been used to illustrate the commitment of Joseon court historians to documenting even events displeasing or embarrassing to the king and the extent to which the king could not influence which stories were included in the sillok:[13][14]

親御弓矢, 馳馬射獐, 因馬仆而墜, 不傷。顧左右曰: “勿令史官知之。"[b]

Translation:

The king himself rode a horse and shot arrows at a deer. However, the horse stumbled, causing him to fall off, but he was not injured. Looking around, he said, “Do not let the historians know about this.”

— The Veritable Records of Taejong, Vol. 7, article 4

The historian present defied King Taejong’s order and ensured that not only the king’s fall but also his wish to keep it off the record were documented.[13] This happened in the 4th year of Taejong’s reign, on the 8th day, 2nd month of the lunar calendar, equivalent to March 18, 1404, of the Julian calendar.