Alioni

Alioni is a member of the group of knights, Beard of the Mountain Cat, which was garrisoned at the base of the mountain in Kaynes Village, and claimed to serve under a Holy Knight. He was first seen beside his fellow knights trying to capture to capture the enigmatic and infamous Rust Knight who had appeared at the mysterious bar, the Boar Hat.

(Source: Nanatsu no Taizai Wiki)