80 years... Didn't chapter one said she lived 30 years during her second life and around college student age for her first life.... She either lied about her age or the translator misstranslated her age. Because she knew should the parents of the current princess and Noah. How could she have been just 30 years old at the time of her second death then... So confusing....
Edit: So after going back to the chapter and giving a quick look to the raw. I finally realized that she didn't lived +30 years but was a great prophet and a teacher for 30 years. Which now add up and took away all the confusion about the grand parents and parents thing🤣