Requiem of the Rose King(2022)

Baraou no Souretsu

The Wars of the Roses grip medieval England as the houses of York and Lancaster vie for the throne. Richard is the third son of the Duke of York, who plans to take the crown. Richard wants nothing more than for this to happen, but this innocent wish will plunge England further into the chaos of war. Meanwhile, Richard is struggling with a battle far more personal.

(Source: Funimation)