[5] It became common practice after Thomas Muryfn's mayoralty for Lord Mayors of London to be knighted and this may be one reason why later documents refer to him as "Sir".

[6] The misunderstanding may also be due to the translation of the form of address "Dominus" (a term of courtesy used in reference to an official) as "Sir".

[7] The memorial to the graves lost in the Great Fire of London at St Paul's Cathedral, which lists "Sir Thomas Miryfn", may be perpetuating this error rather than evidence of a knighthood.

Sir Robert married Mary, daughter of William Blount, 4th Baron Mountjoy, by whom he had a son, Thomas Denys.

[18] Mirfyn is listed as one of the graves lost in the Great Fire of London in 1666, on a monument in the crypt of St Paul's Cathedral, together with several other Lord Mayors.