Marcus Aurorealis [Marcus Aurelius]
1) Aurelius means golden one
2) Aurora (Borealis) is (northern) lights
3) Aurelius and Aurora both stem from the same proto-Italic word, Auzom, from a proto-Indo-European word meaning dawn.
4) Auzom sounds awesome
This is arguably a quadruple pun, I'm basically playing four-dimensional chess in this weekly challenge.