Well, it's been a while, so in addition to leaving that one to ponder, I shall offer up a second riddle. This one doesn't have a double meaning.
Last of all he joined the journey
Though at first one of the three
Ventured forth and found new honour
Before returning home - to me.
Though the youngest of his fellows
He took the title deemed most high
While I by name alone am titled
Who is he?
And who am I?