Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Odo I or Eudes I (died 10 June 871) was the Count of Troyes from 852 to 859. His ancestry is not known for certain. Onomastics would place him in the extended family of Odo I, Count of Orléans. The most recent studies make him a son of Robert, Count of Oberrheingau and Wormsgau, and Waldrada, a daughter of Odo of Orléans. If this theory is true, he was the elder brother of Robert the Strong