King Gambrinus is credited as the first person to add hops to beer...

"Gambrinus (/gæmˈbraɪnəs/ gam-bry-nəs), is a legendary European culture hero celebrated as an icon of beer, brewing, joviality, and joie de vivre. Traditional songs, poems, and stories describe him as a king, duke, or count of Flanders and Brabant.[1][2]Typical representations in the visual arts depict him as a rotund, bearded duke or king, holding a tankard or mug, and sometimes with a keg nearby."

Wikipedia