Dukes | Titles by Rank
- Dukes of Saxe-Eisenach
- Dukes of Saxe-Eisenberg
- Dukes of Saxe-Gotha
- Dukes of Saxe-Gotha-Altenburg
- Dukes of Saxe-Hildburghausen
- Dukes of Saxe-Iena-Eisenach
- Dukes of Saxe-Lauenburg
- Dukes of Saxe-Lauenburg-Ratzeburg
- Dukes of Saxe-Meiningen
- Dukes of Saxe-Merseburg
- Dukes of Saxe-Merseburg-Lauchstädt
- Dukes of Saxe-Merseburg-Zörbig
- Dukes of Saxe-Neustadt
- Dukes of Saxe-Röhmild
- Dukes of Saxe-Saalfeld
- Dukes of Saxe-Saalfeld-Coburg
- Dukes of Saxe-Teschen
- Dukes of Saxe-Weimar
- Dukes of Saxe-Weimar-Eisenach
- Dukes of Saxe-Weissenfels
- Dukes of Saxe-Wittenberg
- Dukes of Saxe-Zeitz
- Dukes of Scalea
- Dukes of Scania
- Dukes of Schlesvig
- Dukes of Schlesvig-Holstein
- Dukes of Schlesvig-Holstein-Eutin
- Dukes of Schlesvig-Holstein-Glücksburg
- Dukes of Schlesvig-Holstein-Gottorp
- Dukes of Schlesvig-Holstein-Norburg
- Dukes of Schlesvig-Holstein-Norburg-Plön
- Dukes of Schlesvig-Holstein-Plön
- Dukes of Schlesvig-Holstein-Sonderburg
- Dukes of Schlesvig-Holstein-Sonderburg-Arroe
- Dukes of Schlesvig-Holstein-Sonderburg-Augustenburg
- Dukes of Schlesvig-Holstein-Sonderburg-Beck
- Dukes of Schlesvig-Holstein-Sonderburg-Glücksburg
- Dukes of Schlesvig-Holstein-Sonderburg-Plön
- Dukes of Schlesvig-Holstein-Sonderburg-Wiesenburg
- Dukes of Schleswig-Holstein-Sonderburg
- Dukes of Schleswig-Holstein-Sonderburg-Augustenburg
- Dukes of Schomberg
- Dukes of Schweidnitz
- Dukes of Segni
- Dukes of Segorbe
- Dukes of Segovia
- Dukes of Selci
- Dukes of Seminara
- Dukes of Seo de Urgel
- Dukes of Sermoneta