King John sent the instructions to her husband Walter by letters patent.
Having agreed to carry out repairs, he was granted the right to levy tolls by letters patent.
This was the first creation of a peerage by letters patent.
Because of its creation by letters patent, the Barony could only be passed down to male heirs.
Charles I gave his consent by letters patent, on 8 September 1629.
Most corporations by letters patent are corporations sole and not companies as the term is commonly understood today.
Scotland had no cities by royal charter or letters patent prior to 1889.
The new king confirmed his gift to the deceased duke by letters patent presented to his widow in 1442.
The final creation of the title came in 1540 for Cromwell's son, Gregory, also by letters patent.
On 7 July 1924 an official grant by letters patent was made.