 Complete the following phrase:  The first mention of Mława comes from July 2, 1426, when three princes of Mazovia - Siemowit V, Trojden II and Władysław I came here to a session of a local court. It is not known if Mława had already been an urban center, as there are no sources which would prove it. Three years later, Mława was incorporated as a town It was a royal town, located in the Płock Voivodeship in the Greater Poland Province of the Polish Crown. In 1521 during the 