In the Early Middle Ages, Parabiago was the centre of a parish ("pieve") and of an autonomous county, named "Comitatus Parabiagi" and sometimes "Burgaria", governed by the Sanbonifacio family, of Frankish descent, coming from Verona; in the 7th century, it received by the Lombard queen Theodelinda the permission for a little artificial stream, named "Riale" or "Röngia", which took water from the Olona river and travelled through the village: that stream lasted until the 1928, when it was definitively stilted up.