Agon (Queen’s Guard) Board Game

Agon (also known as Queen’s Guard) is a tabletop game that is mentioned in passing in Tabletop Game Design for Video Game Designers. The game is notable for being the first known one to use hexagonal game spaces.
There are French tables for the 1780s whose tops are inlayed with the same design as the Agon board. It seems unlikely that the game is as old as that (since the first recorded mention of the game is in 1872). But it is entirely possible that the table design was what inspired the game