Thomas Ι (Tommaso I; 1178 – 1 March 1233) was Count of Savoy from 1189 to 1233. He is sometimes numbered "Thomas I" to distinguish him from his son of the same name. His long reign marked a decisive period in the history of Savoy.
Biography
Thomas was born in Aiguebelle, the son of Humbert III of Savoy and Beatrice of Viennois. He was still a minor when his father died in 1189, and his mother acted as regent until 1191 during his minority reign.