India's premier domestic first-class cricket tournament, the Ranji Trophy, derives its name from which historic personality?

The correct option is Ranjitsinhji of Nawanagar.

Context & Historical Background:
The Ranji Trophy is India's premier domestic first-class cricket competition, contested by regional and state cricket associations across the country. The tournament was instituted by the Board of Control for Cricket in India (BCCI) in 1934 and held its inaugural season in 1934–1935.

Origin of the Name:
The competition was named in honor of Sir Ranjitsinhji Vibhaji II (1872–1933), the Maharaja Jam Sahib of Nawanagar, who was affectionately known as "Ranji". Ranjitsinhji was a legendary international cricketer who played first-class cricket for Sussex and represented England in 15 Test matches between 1896 and 1902. Renowned for his revolutionary leg-glance shot and exquisite wristwork, he is widely celebrated as one of the greatest batters in cricket history and the first major international cricketer from India.

Conclusion:
Therefore, India's premier first-class cricket tournament, the Ranji Trophy, derives its name from Ranjitsinhji of Nawanagar.