|Eystein with the church he built|
Born on a farm, he came from a family of aristocracy. Of course, aristocracy was relative when you're talking about twelfth century Norway. But still, his great-grandfather was an adviser to Harald Hardrada, the king who unwisely invaded England in 1066. Both Harald and Grampa Ulv Uspaksson died in battle against King Harold and the English army, establishing the family's claim on national heroism.
Eystein was educated in Paris, which is how he shot up pretty quickly in ecclesiastical circles to be chaplain to the King and then archbishop. At the time, there was a nasty rivalry between the monarchy and the church. Moreover, the monarchy itself was in some question -- should it be a unitary, hereditary, national government, or a shape-shifting government of warlords, sometimes governed by a single high king if he had enough power? Eystein backed the unitary hereditary monarchy which would work closely with the archbishop. He crowned Magnus Erlingsson, the grandson of King Sigurd Jorsalfar.
Sadly, Fortune favored the high king / warlord model. Magnus' government was overthrown by King Sverre Sigurdsson. Eystein hung out serving the new King, but eventually differences caused him to excommunicate Sverre/ The King then turned up the heat enough to cause Eystein to flee to England. They eventually patched things up, allowing the archbishop to return to his See. Before his death, he wrote some works praising Saint Olaf. After his death, miracles were reported at his time. A few decades later, the Norwegian synod declared him a saint.
So, to recap the basics: Miracles? Check. Leadership? Check. Courage? Check. Defense of the Faith? Check. Disqualifying failures? Nope. As a bonus, we have some written scholarship (the stuff on Olaf).
The Result? Full sainthood. Thanks, Saint Eystein, for your work to make Norway a modern, civilized, Christian community.