Friesland belonged from 1579 to the "Union of Utrecht" and from 1581 to the "Republic of the United Netherlands". The flag of the Province of Friesland was adopted in 1957 and goes back to a coat of arms of the 15th century. The white and blue stripes and the lily pads represent the municipalities of the province.
The flag of the Province of Gelderland was adopted in 1953. Its colors go back to the crest of the Duchy of Geldern (golden lion on blue) and the Duchy of Julich (black lion on gold). Their colors had been combined in this flag.
Blue stands for water, green for the land and yellow for the rape, which was first cultivated on the dry land. The lily should remember the name of Cornelis Lely, who has planned the land reclamation in the late 19th century has planned.
Im Jahre 1840 wurde die Provinz Holland in Nord- und Südholland geteilt. Die Flagge der Provinz Südholland wurde 1986 angenommen. Sie zeigt das Abbild des Wappens der Grafschaft Holland, roter Löwe auf Gold.
The flag of the Province of Zeeland was adopted in 1949. It shows white and blue wavy lines and in the center the arms of the county from the 15th century. The wavy lines are derived from the lower part of the coat of arms, and should symbolize in the flag the repetitive change of water and land in the landscape of the province. The crest is divided and shows in the upper half of the heraldry of Holland (red lion on gold) and in the lower half six white and blue wavy lines. Above a count's coronet.
The coat of arms of Limburg showed a crowned red lion on a white background. The Lion and also white appear on the flag of the province of Limburg, but also a central blue stripe, which symbolizes the river Maas, and a golden stripe, to commemorate the gold in the arms of Julich, Geldern, Hoorn and Valkenburg. The flag was introduced in 1953.