The current Baron and Baroness of the Debatable Lands are Brandubh Ó Donnghaile and Hilderun Hügelmann, eighth to hold that position.

Their investiture was February 13, 2016, AS 50.

The former landed Barons and Baronesses of the Barony Marche of the Debatable Lands.

First Baron of the Debatable Lands

Robert de la Tor Fraisse invested 2/24/1974

Second Baron and Baroness of the Debatable Lands

Leonard the Younger invested 2/24/1979

Joined by Anna Georgievna of Kiev invested 3/27/82

Third Baron and Baroness of the Debatable Lands

Will Langdon of Greymorne and Ardis Bluemantle invested 5/16/1992

Fourth Baron and Baroness of the Debatable Lands

Tofi Kerthjalfadsson and Genevieve du Vent Argent invested 5/20/2000

Fifth Baron and Baroness of the Debatable Lands

Alonzio of the Peacemakers and Tatyana the Kushka invested 10/18/2003

Sixth Baron and Baroness of the Debatable Lands

Thomas Byron of Haverford and Ariella of Thornbury invested 6/16/2007

Seveth Baron and Baroness of the Debatable Lands

Uilliam mac an t'Saoir and Constance Glyn Dwr invested 8/27/2011