Answer:
The Russian ruler in the late 17th century that is best known for spearheading extensive reforms of Russia, including the creation of a centralized government and navy was Peter the Great.
Step-by-step explanation:
Peter the Great was one of the most prominent rulers in the history of Russia, belonging to the Romanov Dynasty.
He ruled Russia from May 7, 1682, until his death in 1725, and before 1696 he did so along with his weak and sickly brother, Ivan V of Russia. He carried out a process of modernization through westernization and expansion that transformed Moscow Russia into one of the main European powers.