The term "Swedish Kings" refers to the monarchs who have ruled over Sweden throughout its history. The current royal family belongs to the House of Bernadotte, which began with King Charles XIV John in 1818. The monarchy is constitutional, meaning the king's powers are limited by law, and he primarily serves a ceremonial role. Sweden has had many notable kings, including Gustav Vasa, who established the modern Swedish state in the 16th century, and Gustav II Adolph, known for his military leadership during the Thirty Years' War. The monarchy remains a symbol of national unity and tradition in contemporary Sweden.