CREATE TABLE table_26516 ("Co-king" CLOB, "Relationship to Monarch" CLOB, "Crowned" CLOB, "Co-kingship ceased" CLOB, "Reason" CLOB, "Monarch" CLOB)

Name the crownded for 17 september 1025
SELECT "Crowned" FROM table_26516 WHERE "Co-kingship ceased" = '17 September 1025'
SELECT "Crowned" FROM "table_26516" WHERE "Co-kingship ceased" = '17 September 1025'