Originally Posted by BriarRose
And not just the daughter of a Queen, but her sister then inherited the Kingdom of Castille in her own right. Though she likely wanted a son in her younger years, she was also deeply religious and would have seen it as God's will for her daughter to be the future Queen.
Anne Boleyn knew her life was in grave danger if she could not provide a living son. It's possible she could have saved her own life if she agreed to an annulment, but that would have made her daughter illegitimate.
I think Anne's fate was sealed when Catherine of Aragon died and she suffered a miscarriage. The presence of a living ex-wife complicated Henry's life while he was married to Anne and he did not want history to repeat itself.
Many people considered Elizabeth illegitimate because Catherine of Aragon was still living when Elizabeth was born. He didn't want any question about the legitimacy of any sons he had with subsequent wives.