CREATE TABLE table_name_8 (born_died VARCHAR2, entered_office VARCHAR2)

What is the born-died that has office of 13 September 1229 as the entered?
SELECT born_died FROM table_name_8 WHERE entered_office = "13 september 1229"
SELECT "born_died" FROM "table_name_8" WHERE "13 september 1229" = "entered_office"