Duke of Aarschot
noble title

The Duke of Aarschot (or Aerschot) was one of the most important aristocratic titles in the Low Countries, named after the Brabantian city of Aarschot. The title was held by the House of Croÿ and the House of Arenberg. The present Duke is Leopold-Engelbert-Evrard de Arenberg-Ligne.
Lords of Aarschot
Godfried of Brabant (12??-1302), Lord of Aarschot, killed in the Battle of the Golden Spurs.
Margaretha of Lorraine-Vaudémont (1420–1477), Lady of Aarschot. Married to Antoine de Croy, Comte de Porcéan.
Philip I of Croy (1435–1511), 2nd count of Porcéan, 2nd count of Guînes and Lord of Aarschot.
Henry de Croÿ (1456–1514), 3rd count of Porcéan, count of Seneghem and lord of Aarschot
Margrave of Aarschot
William de Croÿ (1458–1521), since 1518, Count of Beaumont, Duke of Sora and Arce, and since 1521, Margrave of Aarschot.
Dukes of Aarschot
House of Croÿ
Philippe II de Croÿ (1496–1549), since 1514, Count of Porcéan, since 1521, Duke of Sora and Arce, 2nd Count of Beaumont, since 1532, Margrave of Renty, and since 1532, first Duke of Aarschot.
Charles II de Croÿ (1522–1551), 2nd Duke of Aarschot.
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