The man with the curtain is
Erasmus; not sure what you mean by Durer & then "Albertus" -- one of the images is an engraving by Durer of
Albert of Brandenburg, who inadvertently helped start the Reformation.
My husband's Kindle arrived at my office, so I opened it there & charged it up -- my colleagues & I thought at first that guessing who was in the screensaver images was a game -- but then, we noticed that most of the writers were labeled. Not sure why Amazon assumes they need to tell us who Mark Twain is but we'll immediately recognize Erasmus, & I have no idea why Albert of Brandenburg deserves to be thrown in with the writers anyway, but we did have a bit of fun.