Final answer:
Mary Shelley is the correct answer, as she achieved fame later in life despite being married to the well-known poet Percy Bysshe Shelley. Her significant literary contribution, including the writing of 'Frankenstein,' only gained the recognition it deserved posthumously.
Step-by-step explanation:
Mary Shelley, author of the groundbreaking novel Frankenstein, was indeed married to a famous person, the poet Percy Bysshe Shelley, and gained significant fame herself only later in life. Her early life was fraught with scandal and romantic tumult, particularly as her relationship with Percy began under controversial circumstances. Yet, despite such personal tragedies as the loss of her children, Mary Shelley persevered and continued to write, eventually securing her place in the literary canon.
Mary Shelley was the daughter of two intellectual figures, the philosopher and journalist William Godwin and the feminist philosopher and writer Mary Wollstonecraft. Raised in a household punctuated by political and philosophical discussions, she was well-prepared for the intellectual pursuits and challenges that lay ahead. Although her path to recognition was not immediate, largely due to the overshadowing presence of her prominent husband, her literary contributions have since been celebrated, with Frankenstein forming a significant part of her lasting legacy.