He appears with this same title years later in 1126 and 1133 when, with other members of his family, he founded the Cistercian monastery of Santa Maria di Lucedio near Trino.
Around the time of his appearance in the pages of history, c. 1111, Renier was a follower of the Emperor Henry V. In that year he obtained an imperial concession for the citizens of Turin: a diploma regarding the Via Francigena which passed through the town.
In 1113, Renier donated his portion of the Langiano to the monastery of San Secondo di Terra Rossa, affiliated with the Abbey of Fruttuaria.
On 23 May 1116, Renier was present with the Emperor when the latter bestowed the castles of Celle, Frassinello, Fubine, and Cuccaro on his nephew Conrad and Guido Cane.
In 1105, Renier married Gisela,[1] daughter of William I, Count of Burgundy, already the widow of Humbert II of Savoy and mother of Adelaide of Maurienne, who, in 1115, became the second queen of Louis VI of France.