Srila Vyasadeva
It is described in the lists of the main avataras of the Lord as found in the Bhagavata Purana, that the seventeenth incarnation was Srila Vyasadeva who appeared as the son of Parashara Muni and his wife Satyavati. His mission was to divide the one Veda into various branches and sub-branches so the people who are less intelligent can more easily understand them. (Bhag.1.3.21 & 2.7.36)
It is further explained that because of his tapasya or austerities at Badrinatha, Vyasadeva was a