Catherine of Aragon stands her ground

The transcript discusses the speaker's conflict over marrying a brother's wife, being questioned by authorities like Cardinal Wolsey, and the suggestion to retire to a convent. The speaker expresses determination to stand their ground, considering the implications for their daughter and rejecting the idea of living in a convent.

What reasons does the speaker give for not wanting to live in a convent?

What does the speaker mean by 'stand my ground'?