Thus ended a historic tragedy than which the stage possesses few of more striking dramatic interest and opportunities for histrionic effect.
What does ''more...than..." mean in the sentence? Which one is more/less? This sentence is extracted from ALBOIN AND ROSAMOND and the context is as follows.
As Helmichis left the bath he received a wine-cup from the hands of his treacherous wife, and lifted it to his lips. But no sooner had he tasted the liquor, and felt the shock that it gave his system, than he knew that he was poisoned. Death, a speedy death, was in his veins, but he had life enough left for revenge. Seizing his dagger, he pressed it to the breast of Rosamond, and by threats of instant death compelled her to drain the remainder of the cup. In a few minutes both the guilty partners in the death of Alboin had breathed their last.
When Longinus was, at a later moment, summoned into the room, it was to find his late guests both dead upon the floor. The poison had faithfully done its work. Thus ended a historic tragedy than which the stage possesses few of more striking dramatic interest and opportunities for histrionic effect.