My 30th great grandfather was not a barbarian, he was Conan I ‘le Tort’ de Rennes, duc de Bretagne. ‘Le Tort’, meaning ‘the crooked’. I’m assuming he had some sort of physical deformity.
Like most nobles with castles, he had a company of fighting men that he would lead if required by his liege lord. If not, then he would lead his own men on various attempts to gain more land by fighting other nearby castles.
Conan decided to fight his brother-in-law, Fulk III, of Anjou. Conan was laying seige to the city of Nantes, and Fulk was rushing his men to counter Conan.
Conan decided to retreat back to his castle to fight Fulk, but could not get away from Fulk, so he stopped and prepared the battlefield with some surprises.
Conan had pits dug, filled with water and covered with branches. When Fulk came up, Conan lured his men towards the traps. The ruse worked and Conan should have won the battle.
Unfortunately Conan was feeling pretty confident so he stopped, it was a hot day, so he paused to take off his armor. A few men in Fulk’s company happened to see thus and attacked Conan, then killed him.
The rest of Conan’s men fled back to the castle, and then surrendered to Fulk.
Conan had to foresight to endow Mont. St. Michael, and after his death he was buried there. Within the next few hundred years it became the incredible place we see today.