L to R: St. Augustine of Hippo, window in Southwark Cathedral, London, photo by Vassil; St. Hildegard of Bingen, photo by Wolfgang Sauber; St. Irenaeus of Lyons, window crafted by Lucien Bégule, photo by Gérald Gambier.

ROUNDTABLE: The Register speaks with theologians Tracey Rowland, Father Thomas Joseph White, John Cavadini, and Matthew Bunson for their thoughts on St. Irenaeus of Lyon being declared a Doctor of the Church.