Berengaria is the daughter of a Flemish Crusader who followed Philip of Alsace and Richard the Lionheart to Jerusalem (Outremer) on the Third Crusade (1189-1192) and decided to stay. He married a local woman and they named their first daughter after Richard's queen.
Berengaria is a traveller, ans as such she picks up elements from the cultures she encounters, so her appearance can change from event to event.