Kurgans
From Witcher Wiki
These five kurgans (or barrows), located next to the Hermit's hut south of the Fields, are all that remains of the Lady of the Lake's champions. But what's that? There's an empty one ...
Of the four that are not empty, they contain the remains of knights who died serving the Lady over the ages. Gavander defended her honor against the Black Skull Knight. Elleverer perished at the foot of her altar fighting a water beast. Bors' tomb is symbolic, for the knight was lost on a holy mission. The last is for Reynard, an ordinary innkeeper who stopped customers from pissing in the lake... The last kurgan awaits a new champion.
The hermit says that late at night, one can speak with the spirits of the Lady's champions.
