What might have happened to Vasili Yuryevich had he survived infancy? If he had lived, he would have been four years old when his father died in 1563, and then ten if his mother is still drowned on Ivan's orders. If things went as badly with Ivan IV and his family as they did IOTL, would he have been considered a candidate for the Muscovite throne? Or, more likely, would he have been caught up in Ivan's purges?