Mitra-Varuna (Indo-European)

Mitra-Varuna is a proposed deity or dyad of deities suggested to have existed in Proto-Indo-European religion and mythology. First proposed by Georges Dumézil, he considered it to have been composed of two distinct elements – Mitra and Varuna – this divine pair represented different aspects of sovereignty, with Mitra embodying reason, order, and benevolence, and Varuna symbolizing violence, darkness, and inspiration.

Source: Wikipedia — Mitra-Varuna (Indo-European) (CC BY-SA 4.0)