Inability to decide a clear line of demarcation in Baarle-Hertog resulted in the division of the disputed territory into 5732 separate parcels of land.[2] These formed part of a very complicated frontier which sometimes passes through houses, and has tiny enclaves,[3] due to land ownership dating back to the 12th century.[4] Belgian enclaves in otherwise Dutch territory even have at times Dutch counter-enclaves within them.[5]