Assertion: henry's legend | /r/HasProperty | referred in letter
Facets:
value: by the archbishop of uppsala
type: OTHER
value: in 1298
type: TEMPORAL
Source sentences:
text: The legend itself is also first referred in a letter by the Archbishop of Uppsala in 1298, where Eric and Henry are mentioned together as martyrs who needed to be prayed to for the sake of the situation in Karelia, associating their alleged crusade to Finland with the new expeditions against Novgorod.