Passage: Soon after he reached the age of 21, the prince became infatuated with Maria Fitzherbert. She was a commoner, six years his elder, twice widowed, and a Roman Catholic. Nevertheless, the prince was determined to marry her. This was in spite of the Act of Settlement 1701, which barred the spouse of a Catholic from succeeding to the throne, and the Royal Marriages Act 1772, which prohibited his marriage without the King's consent.Nevertheless, the couple went through a marriage ceremony on 15 December 1785 at her house in Park Street, Mayfair. Legally the union was void, as the King's consent was not granted (and never even requested). However, Fitzherbert believed that she was the prince's canonical and true wife, holding the law of the Church to be superior to the law of the State. For political reasons, the union remained secret and Fitzherbert promised not to reveal it.The prince was plunged into debt by his exorbitant lifestyle. His father refused to assist him, forcing him to quit Carlton House and live at Fitzherbert's residence. In 1787, the prince's political allies proposed to relieve his debts with a parliamentary grant. The prince's relationship with Fitzherbert was suspected, and revelation of the illegal marriage would have scandalised the nation and doomed any parliamentary proposal to aid him. Acting on the prince's authority, the Whig leader Charles James Fox declared that the story was a calumny. Fitzherbert was not pleased with the public denial of the marriage in such vehement terms and contemplated severing her ties to the prince. He appeased her by asking another Whig, Richard Brinsley Sheridan, to restate Fox's forceful declaration in more careful words. Parliament, meanwhile, granted the prince £161,000 (equivalent to £20,095,000 today) to pay his debts and £60,000 (equivalent to £7,489,000 today) for improvements to Carlton House.

Question: What was the prince's determination about Maria Fitzherbert?
to marry her