1111) was a Queen consort of Aragon and Navarre.
They had no children and Peter died the following year.
The crown of Aragon and Navarre passed to Peter's half-brother Alfonso.
Bertha got a dower but Alfonso got all of Peter's lands.
Genealogist Szabolcs de Vajay has speculated that Bertha may have been a daughter of Peter I, Count of Savoy, and another Agnes of Aquitaine, perhaps the Agnes who was the final wife of Peter's grandfather Ramiro I of Aragon and first-cousin of Peter's own first wife.