An Obsession with Belisarius?

“It’s strange that science fiction and fantasy are obsessed with retelling the story of Belisarius, when the mainstream world isn’t particularly interested. Robert Graves wrote a historical novel about him in 1938, Count Belisarius, and there’s Gillian Bradshaw’s The Bearkeeper’s Daughter (1987), but not much else. Whereas in genre, we’ve had the story of Belisarius retold by Guy Gavriel Kay, David Drake (twice) and Chelsea Quinn Yarbro, and used by L. Sprague de Camp, John M. Ford, Jerry Pournelle, Robert Silverberg, and Isaac Asimov. So what is it about this bit of history that makes everyone from Asimov to Yarbro use it? And how is it that the only place you’re likely to have come across it is SF?”

— Jo Walton, Why is Genre Fiction Obsessed with Belisarius?, Tor.com