Deed dated dated 19th July 1638 granting a "swan mark" (unique identifying notch on the beak) granted by John Duke of Worlingham, Suffolk, "Master of his Majesty's Royal Game of All manner of swannes and signettes within and throughout the counties of Essex and Suffolk" as is stated on the deed. The grantee was John Hobart of Weybread in Suffolk. See [1]: deed of grant of a swan mark dated 19th July 1638 signed and sealed by John Duke of Worlingham, Suffolk. 287x186mm. Written in black ink on vellum, with a pen and ink diagram of a swan's bill with the mark being granted at the head of the document, red wax seal. The signatures of the witnesses are also present as is the later signature of Thomas Bransby. The grantee of the swan mark is John Hobart of Weybread in Suffolk. Transcript by Lobsterthermidor (talk) 16:45, 5 October 2021 (UTC) with abbreviations expanded and modernised spelling:

Be it known unto all men by these presents that I John Duke, of Worlington in the county of Suffolk, Esquire, being the sole and absolute Master and Governor of his Majesty's royal game of all manner of swans and cygnets in this and througout the counties of Essex and Suffolk have given and granted and by these presents do give and grant unto John Hobart of Weybread in the county aforesaid, Esquire, full power and authority to assume and use the mark above (drawn) for the marking of his swans and cygnets, the property, use, and behoofe of the said John Hobart his heirs and assigns ....... within and upon the River of Waveney or any other rivers waters pools gofes (gulfs ?) creeks and meres in the county of Suffolk or dividing Suffolk and Norfolk whereby he the said John Hobart his heirs and assigns may know and distinguish his and their swans and cygnets from the swans and cygnets of and belonging to his Majesty or any other person or persons. To have and to hold the same swan mark unto the said John Hobart his heirs and assigns by and according and under such orders (and other regulations) as are evident and belonging to Swan Moote laws. In witness whereof I the said John Duke have hereunto set my hand and seal dated the nineteenth day of July in the year of the reign of our most sovereign King Charles of England the twelfth, Annoque Domini (i.e. and in the year of Our Lord) 1636.

Signed and sealed at botton centre by John Duke, and signed at right by Thomas Bransby (apparently a later addition, per www.abebooks.co.uk); at left "sealed and .... in the presence of Simon ....., Sutton". Note: "The River Waveney is a river which forms the boundary between Suffolk and Norfolk, England, for much of its length within The Broads. There are several lakes on the south bank, the largest covering 100 acres (40 ha), which were once Weybread Gravel Pits, but are now used for fishing" (Wikipedia). A tributary joins it at Weybread Mill, originally the manorial grain mill.

John Duke was lord of the manor of Worlingham in Suffolk. The monument of his first wife Parnell Rous (d.1637) survives in Worlingham Church. John Hobart was a landowner in East Anglia and at Blickling in Norfolk where Sir Henry Hobart was the deputy Swan-Master for east Norfolk and Suffolk in 1625. (Source: /www.abebooks.co.uk[2])