Okay, so I need help. What if Elizabeth is born before Henry can marry Anne, but he still grudgingly acknowledges her and gives her the title Marquess of Pembroke (which IOTL, he gave to Anne)?
Assuming ATL Elizabeth still has her OTL counterpart's royal ambitions (except she remains outwardly Catholic), how would she affect the reign of a brother who survives to adulthood?
As for marriage, are the Continental princes inclined to marry a royal bastard? And if not, which lord would be likely to marry her?