Burchard was jointly involved with his father in the governance of the Aosta Valley from April 8, 1022 perhaps as coadjutor before to ensure the succession of his maternal uncle as bishop of Aosta in 1025.
Burchard wspólnie z ojcem zarządzał doliną Aosty od 8 kwietnia, 1022, być może, jako koadiutor, aby zapewnić sobie następstwo po swoim wujku biskupie Aosty w 1025 roku.