Duke of Derfelgern

Duke of Derfelgern is an extinct title in the Peerage of Pyrus.
== Ancienty and Precedence ==
The title was created in 1772 for Camest Derfel.
== Descent ==
The title was held by the House of Derfel. However the title was forfeited under the Great Land Reform Act: 1772. The title has been extinct since 1773.
== Dukes of Derfelgern ==
Camest Derfel, 1st Duke of Derfelgern (b.1770) (forfeit 1773)
Category:Peerage of Pyrus
Category:House of Derfel