Amadeus I, Count of Savoy

Amadeus I (c. 1016 – c. 1051), nicknamed of the Tail or la Coda (Latin , "tailed"), was an early count of the House of Savoy. He was probably the eldest son of Humbert I. His nickname derives from an anecdote, preserved only in a thirteenth-century manuscript, that when he met the Emperor Henry III at Verona in 1046, he refused to enter the emperor's chambers without his large train of knights, his "tail". of unknown family, gave the church of Matassine to Cluny. The act was witnessed by one Humbert and his wife Ausilia—who were perhaps Amadeus's father and mother—and also by his brother Otto and by the king and queen of Burgundy, Rudolf III and Ermengarda. Although the document of 1030 does not demonstrate that Amadeus and his father both held the rank of count simultaneously, Humbert's diploma of 1040 for the Diocese of Aosta was confirmed by his eldest son bearing the title count. On 21 January 1042 Amadeus, Otto and Aymon confirmed another diploma of their father, favouring the church of Saint-Chaffre. On 10 June, Count Amadeus, Count Humbert and Otto donated the church of Echelles to the church of Saint-Laurence in Grenoble. There is no notice of Amadeus's activities for the following decade, and his last action was recorded on 10 December 1051. In this document, he is called "Count of Belley" (comes Bellicensium), but it is almost certainly the same Count Amadeus as the son of Humbert I.

According to fourteenth-century sources, Amadeus died shortly after 1051 and was buried in Saint-Jean-de-Maurienne. His son Humbert had predeceased him, but he left behind a son, Aymon, who became Bishop of Belley. He may have had a daughter who married into the family of the Counts of Geneva. He was succeeded by his brother Otto in the countship.