Final answer:
John Keats never married Fanny Brawne due to his ill health and financial situation; he passed away from tuberculosis at 25 before they could marry, making the statement False.
Step-by-step explanation:
The statement "Keats was able to enjoy a few blissful years of marriage to Fanny Brawne before his death by tuberculosis." is False.
John Keats, the renowned Romantic poet, was never able to marry Fanny Brawne, the woman he deeply loved, due to his deteriorating health from tuberculosis. Keats met Brawne in 1818 and they formed a deep connection; however, their relationship was strained by Keats's lack of financial stability and his illness. His fragile condition and financial difficulties prevented the possibility of marriage, and Keats passed away in 1821, at the age of 25, unmarried.