Explanation:

Rabindranath Tagore - 20th century: This pair seems correct. Rabindranath Tagore was indeed a prominent figure in the 20th century.

Mirabai - 16th century: This pair is correct. Mirabai, the mystic poet and devotee of Lord Krishna, lived during the 16th century.

Guru Nanak - 15th century: This pair is also correct. Guru Nanak, the founder of Sikhism, lived during the 15th century.

Raja Ram Mohan Roy - 19th century: This pair is correct. Raja Ram Mohan Roy, a social reformer and the founder of the Brahmo Sabha movement, lived during the 19th century.

Therefore, all the pairs are correctly matched.