Page "Mausoleum of Princess Jeonghyo" Paragraph 5

The epitaph also recorded that the Princess died on Monday, 6 July 792, during the fifty-sixth year of the Daeheung era.

She was accompanied in the burial at Ran Valley ( 染谷 ) in Xi Yuan ( 西原 or Western Plains ) in the winter of 809 ( 已卯 ), western Gregorian solar calendar Monday, 11th January 810, Chinese lunar calendar 28th November 809.

She was given the posthumous name " Jeonghyo " to qualify her as virtuous and filial.

She was likely a horse-rider, as the remains of a horse were found in the chamber.