Sixty years later, Gollum was captured by orcs, and taken to Mordor, where he was tortured into revealing the owner and location of the Ring; Bilbo Baggins of the Shire. In the meantime, Bilbo had left the Shire to live in Rivendell, and upon the advice of Gandalf had (very reluctantly) given the Ring to his nephew, Frodo Baggins.
Bilbo
Gandalf