Gresufes is a Portuguese hamlet located in the parish of Balasar, Póvoa de Varzim. Its name is of Suebi origin.
Map of Gresufes, Povoa de Varzim, Portugal
Alexandrina Maria da Costa was born in this small village. Gresufes was a parish until 1442, but it merged with the neighbouring parish of Casal to form Balasar (after the name of a small place in the area).
References
Gresufes Wikipedia(Text) CC BY-SA