The Chronicle of Alberic de Trois-Fontaines names "comites Stephanum de Ultrasagonam et Gerardum Viennensem" as sons of "comes Renaldus [de Burgundia] fratrem comitem Guilelmum" & his wife. "Willelmus Masticonensis comes et Burgundie" donated "abbatiam de Balma" to Cluny by charter dated 14 Jun 1147, confirmed by "Poncia comitissa uxore mea et filiis meis Stephano et Gerardo".
He succeeded his father in 1155 as Comte d'Auxonne, Seigneur de Traves. “Comes Stephanus...et fratrem meum comitem Gerardum” settled disputes with Charlieu abbey, with the consent of “matris nostræ...comitis Willelmi patris nostri et avi nostri domini Theobaldi de Treva”, by charter dated 28 Oct 1157. “Stephanus comes Burgundie et dominus de Treve” donated land “apud Ledonium” to Tart abbey, with the consent of “Judith comitissa uxore mea”, by charter dated 1173.
He died before mid-Sep 1173, the date of a charter under which "Girardus in Burgundia comes Matisconensis" donated property to Cîteaux in memory of "Stephanus comes frater meus". 1
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