text: The first, undisputed mention of the name 'Stockholm' are from two letters written in Latin in 1252; one written in July is a letter where the King Valdemar and Birger Jarl offering their royal patronage to the abbey of Fogdö; and the other, written by Birger Jarl, in August, urging the péasantry in Attundaland to pay their tithes to the Uppsala Cathedral