: An artist in stone and Tom’s stepson, whose brilliance eventually helps complete the cathedral's innovative design.

: A real civil war between King Stephen and Empress Maud that provides the political instability driving the plot.

: The primary antagonist, a cruel nobleman whose obsession with Aliena and hatred for Kingsbridge fuels the story's conflict. Historical Accuracy & Setting

While the characters are fictional, the novel integrates real historical events and figures to create an "authentic atmosphere":