Mostly A Name Of Mythical Origin, Rhaegar Is A Name Made Famous By A Game Of Thrones. He Was The Heir And Eldest Son Of The Second King Aerys Targaryen, Also Known As The Mad King. He Was The Older Brother Of Viserys And Daenerys Targaryen, And Known For His Gentler Side. If Baby Is Meant To Be A Musician Or An Academic But Always Living Life With A Nerdy Streak, Consider The Unique Selection Of Rhaegar.