He placed his dynasty, the Arduinici, on a firm foundation and established the march of Turin through conquests and royal concessions.
[1] Arduin was the eldest son of Roger, Count of Auriate (r. c. 906 – c. 935), a Frankish nobleman who immigrated to Italy in the early tenth century.
Berengar was particularly dominant during the brief reign of Hugh's son, and successor, Lothair II of Italy, who was married to Adelaide.
Many contemporary sources discuss Arduin's role in the siege of Canossa, including Donizo's Vita Mathildis.
Arduin later cultivated a marital alliance with Adalbert Atto of Canossa, whose daughter Prangarda married his son and successor, Manfred I.
Despite the fact that he repatriated their land from the Saracens, the monks of Novalesa who had fled Saracen incursions in 906 and were still in Turin as late as 929 accused him of disrespecting their rights: Ardoinus vir potens ... nobis tulit [vallem Segusinam] tantum ... erat plenus viciis ... superbia tumidus ... in adquirendis rebus alienis avaricie faucibus succensus.
[1] Arduin married a woman named Vmille in the Necrologio Sanctæ Andreæ Taurinensis, probably Emilia or Immula.