The Union of Delft was the signed by the prince of which part of France?
Union of Delft: The Act of Federation of 1576, (popularly known as the Union of Delft) was signed on 25 April 1576 by William the Silent (the then Prince of Orange) and the provinces of Holland and Zeeland in the Netherlands and made a definitive federation of the two provinces. Prince of Orange: Prince of Orange is a title originally associated with the sovereign Principality of Orange, in what is now southern France.
southern France