Quote Originally Posted by tonberrian View Post
Spoiler: Jeralt and the Saints
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We meet both the other Saints during some paralogues, i believe (I spoiled myself on this). They're not Jeralt. He however does have a major Crest - that of Seiros - which might explain his lack of aging. I think that it was just convenient to use an Atarkan knife to kill him because they kill good.
Spoiler: Silver Snow Route
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Rhea makes it clear that she gave Jeralt a Major Crest of Seiros using her own blood, thus his living so long, in the church route.