Blazon

Arms: Argent, a cross Gules, below ahead and above behind a fleur-de-lis Azure, on the cross dexter diagonal a sword (Excalibur) Argent, with a blade Argent, hilt and crossguard Azure.

Crest: demi wyvern Gules, armed Argent with wings Argent, the throat pierced through with a lance shaft Argent and pryce Azure.

Motto: Nil Desperandum (Never despair).

The grant of arms and crest by letters patent to Jörg Hubert Dumke by the Münchner Wappen-Herold e.V. (registered society/Munich), dated 11 October 2014. Reference: Grants 094/12065.

The Baron's Family Coat of Arms is recorded in the Wappenrolle (Roll of Arms) Münchner Herold Vol. XIII under Registration No. 094/12065 (see online Roll of Arms Münchner Herold page 120 (2102).

The Münchner Wappen-Herold and the Wappenrolle Münchner Herold (Roll of Arms Munich Herald), Germany rank among to the leading International Heraldry Authorities for the granting and registration of Armorial Bearings (Coat of Arms).

The Roll of Arms is on display in over 100 International Libraries and Archives and all volumes are to see online as well under Wappenindex Münchner Wappen Herold.

The Dumkes are an old family who descend from Hugenots, a group of French Protestants followers of John Calvin. From the end of the 17th into the 18th centuries about half a million Hugenots had to leave France because of religious persecution. Many of them settled in England, The Netherlands, Denmark, Eastern Germany, Switzerland and North America. The ancestors of the current Baron of North Cadbury fled to Eastern Germany during the 17th century, from where they had to escape again during World War II. They finally settled in Hamburg.
The family name Dumke derives from, and is an abbreviation of, the given name “Thomas”. The name Thomas and its variants appear also as surnames in Britain, France, Germany, The Netherlands, Denmark and even in the South of India. In Great Britain the family name Thomas is more common in Wales and Cornwall.