Ulmo Ulmo Ulmo (from the Valarin Ulubôz, Ullubôz via Ulumō) is a fictional character in J. R. R. Tolkien's Middle-earth legendarium. He first appears in "The Silmarillion" as a god or Vala of the Elven pantheon. Ulmo is a title, which means "He who pours". He is also known as "King of the Sea" and "Lord of Waters". Ulmo is similar to the god Poseidon in Greek mythology, Neptune in Roman mythology, Ægir in Norse mythology, and Manannan in Celtic mythology. Ulmo was one of the chief architects of Arda (the world). Ulmo was second in majesty of the Valar, after
Neptune (mythology) of Venilia in childbirth and motherhood. A legendary king Venulus was remembered at Tibur and Lavinium. German scholar H. Petersmann has proposed a rather different interpretation of the theology of Neptune. Developing his understanding of the theonym as rooted in IE *nebh, he argues that the god would be an ancient deity of the cloudy and rainy sky in company with and in opposition to Zeus/Jupiter, god of the clear bright sky. Similar to Caelus, he would be the father of all living beings on Earth through the fertilising power of rainwater. This "hieros gamos" of Neptune and Earth would