The patron saints of the Netherlands are Saint Willibrord, Saint Boniface, and Saint Servatius. Saint Willibrord is known as the "Apostle to the Frisians" for his missionary work in the region. Saint Boniface was a prominent missionary in the Frankish Empire, which included parts of the Netherlands. Saint Servatius is a patron saint of the city of Maastricht and is considered one of the first bishops of the region.