Query: Who is venerated in the Roman Catholic practice of dulia?
Context: Similarly, Catholics do not worship Mary as a divine being, but rather "hyper-venerate" her. In Roman Catholic theology, the term hyperdulia is reserved for Marian veneration, latria for the worship of God, and dulia for the veneration of other saints and angels. The definition of the three level hierarchy of latria, hyperdulia and dulia goes back to the Second Council of Nicaea in 787.