The Duchy of Gelre was a historical region in the northeastern part of present-day Netherlands. Established in the 11th century, it became a significant political entity in the Middle Ages. The duchy was known for its strategic location and played a crucial role in the power struggles of the time, particularly during the conflicts involving the Holy Roman Empire and neighboring territories. Throughout its history, the Duchy of Gelre was ruled by various noble families, with the most notable being the House of Gelre. The duchy eventually became part of the Burgundian Netherlands in the 15th century, leading to its integration into larger political entities in the region.