For award-winning, internationally-acclaimed author Rosemary Sutcliff (1920-92). By Anthony Lawton: godson, cousin & literary executor. Rosemary Sutcliff wrote historical fiction, children's literature and books, films, TV & radio, including The Eagle of the Ninth, Sword at Sunset, Song for a Dark Queen, The Mark of the Horse Lord, The Silver Branch, The Lantern Bearers, Dawn Wind, Blue Remembered Hills.
A while back I was alerted by a commenter to “a nice academic site which has reviews of several works of Arthurian fiction”, here. The author is Professor Howard Wisemanof Griffith University in Australia, a theoretical scientist by trade. The Lantern Bearers and Sword of Sunset are reviewed here, and “come off better than most”.