William I, Grand Duke of Luxembourg was born on March 17, 1792, and became the first Grand Duke of Luxembourg in 1815. He was also known as William I of the Netherlands, having ruled over the United Kingdom of the Netherlands from 1815 until 1830. His reign in Luxembourg was marked by efforts to modernize the country and improve its infrastructure. In 1830, following the Belgian Revolution, William I lost control of Belgium, which led to his focus on Luxembourg. He worked to strengthen the economy and promote trade, establishing Luxembourg as an important center in Europe. He abdicated in 1840 and passed away on March 12, 1843.