At this point I am heavily referring to the family tree I produced with the much appreciated help (the intermingling of ruling houses in Europe gives me a headache sometimes, honestly) of the members of this discussion . John IV, ie. TTL's John III's oldest son by Anna of Poland, Albert (II)'s daughter
He's a blank slate, so I don't know what he could or couldn't do.
At this point I am heavily referring to the family tree I produced with the much appreciated help (the intermingling of ruling houses in Europe gives me a headache sometimes, honestly) of the members of this discussion . John IV, ie. TTL's John III's oldest son by Anna of Poland, Albert (II)'s daughter.
They still managed to reach Novgorod. The boyars even asked them to give them a tsar.
Fair point.