[1] The sketchy available evidence indicates that Tescelin senior was a miles castri, a dependent knight unrelated to his lord.

She had a son named Gui by Fulk,[5] Tescelin is described as having a reddish complexion, almost yellow-haired, commonly known as Sorus, or Le Roux.

[6][b] William of St-Thierry said he was "a man of large possessions, gentle in manners, a great lover of the poor, of devoted piety, and of an extreme zeal for justice ...

[9] A strong house was built on the hill in the 11th century, entrusted to Tescelin le Roux as seigneur de Fontaine.

[11] Tescelin Sorus is among the signatories of a diploma of Hugh II, Duke of Burgundy, in favour of the Monastery of Saint Marcellus at Chalon-sur-Saône.

[7] On 16 February 1106 Tescelin was one of the witnesses when Pope Paschal II consecrated the Church of Saint-Bénigne de Dijon.