Éomer his sister Éowyn were adopted by their uncle Théoden, king of the Rohirrim. He first appears in "The Two Towers" as the leader of the "éored" who attacked and killed the Uruk-hai who had kidnapped the hobbits Meriadoc Brandybuck and Peregrin Took. He helps Aragorn, Gimli and Legolas by providing them two horses, Hasufel and Arod, and guiding them to the spot where the attack had taken place. On his return to Edoras, Éomer reports this meeting to Théoden, and is promptly imprisoned on the orders of Gríma Wormtongue, Théoden's sinister advisor. Gríma kept the king in a sickly stupor
Conan Meriadoc the Rohans, according to the "Life of Saint Meriadoc", the protagonist of which is said to have been descended from him. Meriadoc appears in one of the genealogies from Jesus College MS 20, which traces the descent of Geraint mab Erbin, king of Dumnonia in the West Country, back to "Cynan map Eudaf Hen". In the Cornish miracle play "Beunans Meriasek", Conan is a kinsman of Saint Meriasek who tries (unsuccessfully) to dissuade Meriasek from pursuing a religious life. In the 15th century the Bretons used the Conan story as it appears in the "Life of Saint Meriadoc" to establish