The House of Arenberg is an aristocratic lineage that is constituted by three successive families that took their name from Arenberg, a small territory of the Holy Roman Empire in the Eifel region. The inheritance of the House of Croÿ-Aarschot made the Arenbergs the wealthiest and most influential noble family of the Habsburg Netherlands. The family's Duchy of Arenberg was mediatized in 1810. As such, the Arenbergs belong to the small group of families that constitute the Hochadel.

The Egmont Palace, also sometimes known as the Arenberg Palace, is a neoclassical palace in Brussels, Belgium. It was originally built between 1548 and 1560 for Countess Françoise of Luxembourg and Count Lamoral of Egmont, though its appearance was heavily modified in the 18th and 19th centuries. It was partly destroyed by fire in 1892, after which it was once again reconstructed. Nowadays, it is used by the Belgian Ministry of Foreign Affairs for receptions, as a guest house and conference centre.