Duke of Östergötland
Estelle's coat of arms as Duchess of Östergötland
Swedish princes in some dynasties have been created dukes of various provinces, their wives duchesses of same. In English, the title "Hertig av Östergötland" is sometimes given as Duke of Ostrogothia or Duke of East Gothland. Since 1772 it is only a nominal title.
List of Dukes and Duchesses of Östergötland
- Sune Sik, Duke of Östergötland 12th century (according to 18th-century Swedish historian Magnus Boræn)
- Prince Magnus, Duke of Östergötland 1560–1595
- Prince John, Duke of Östergötland 1606–1618
- Prince Fredrik Adolph, Duke of Östergötland 1772–1803
- Prince Oscar, Duke of Östergötland 1829–1872, then King Oscar II of Sweden and Norway
- Princess Sophia, Duchess of Östergötland 1857–1872 as consort of Prince Oscar, then Queen of Sweden and Norway
- Prince Carl, Duke of Östergötland 1911–1937, Queen Astrid of Belgium's brother, later Prince Bernadotte
- Princess Estelle, Duchess of Östergötland 2012–