After the death of her husband in 1035, Muniadona founded the monastery of San Martín de Tours de Frómista, and in her testament dated 13 June 1066, she requested to be buried there.
Muniadona founded the monastery of San Martín de Tours de Frómista. This was after the death of her husband in 1035. She requested to be buried there. This was in her testament. This was after the death of her husband in 1035. This testament was dated 13 June 1066.