The book has a torn paper cover, see the second picture

WORSHIPED, FLATTERED, FEARED Frederick called Barbarossa is convinced that he is at the height of his power. The crowned emperor, preceded by kings, dares even the pope. On the other hand, a rival for the throne is growing up in the young son of King Konrad, and more and more princes are turning to the opposition against his unrestrained friend and cousin Henry the Lion. Friedrich urgently needs an heir, but this happiness remains denied to him and his beloved Beatrix for years...