There is a difference between the
Declaration of Consent and the
Instrument of Consent.
Declaration of Consent to the marriage of Prince William of Wales and Catherine Middleton
https://privycouncil.independent.gov.uk/wp-content/uploads/2011/04/website-list-9-feb-2011.pdf
MY LORDS,
I declare My Consent to a Contract of Matrimony between My Most Dearly Beloved Grandson Prince William Arthur Philip Louis of Wales and Catherine Elizabeth Middleton, which Consent I am causing to be signified under the Great Seal and to be entered in the Books of the Privy Council.
Declaration of Consent to the marriage of Prince Henry of Wales and Meghan Markle
http://privycouncil.independent.gov...018/03/2018-03-14-List-of-Business-Part-1.pdf
MY LORDS,
I declare My Consent to a Contract of Matrimony between My Most Dearly Beloved Grandson Prince Henry Charles Albert David of Wales and Rachel Meghan Markle, which Consent I am causing to be signified under the Great Seal and to be entered in the Books of the Privy Council.
Instrument of Consent to the marriage of Prince William of Wales and Catherine Middleton
https://pbs.twimg.com/media/DYV028kWkAM3Yys.jpg:large
https://www.royal.uk/her-majesty-qu...rriage-prince-william-and-catherine-middleton
Elizabeth the Second by the Grace of God of the United Kingdom of Great Britain and Northern Ireland and of Our other Realms and Territories Queen Head of the Commonwealth Defender of the Faith
To all to whom these Presents shall come, Greeting!
WHEREAS by an Act of Parliament intituled "An Act for the better regulating the future Marriages of the Royal Family", it is amongst other things enacted "that no descendant of the body of His late Majesty King George the Second, Male or Female, (other than the issue of Princesses who have married, or may hereafter marry, into Foreign Families,) shall be capable of contracting Matrimony without the previous consent of His Majesty, His Heirs or Successors, signified under the Great Seal, and declared in Council":
NOW KNOW YE that We have consented and do by these Presents signify Our Consent to the contracting of Matrimony between Our Most Dearly Beloved Grandson Prince William Arthur Philip Louis of Wales, K.G., and Our Trusty and Well-beloved Catherine Elizabeth Middleton
IN WITNESS whereof We have caused Our Great Seal to be affixed to these Presents
GIVEN at Our Court at Buckingham Palace the ninth day of February Two thousand and Eleven in the Sixtieth year of Our Reign
BY THE QUEEN HERSELF SIGNED WITH HER OWN HAND
Instrument of Consent to the marriage of Prince Henry of Wales and Meghan Markle
http://privycouncil.independent.gov...018/03/2018-03-14-List-of-Business-Part-1.pdf
ELIZABETH THE SECOND, by the Grace of God of the United Kingdom of Great Britain and Northern Ireland and of Our other Realms and Territories Queen, Head of the Commonwealth, Defender of the Faith, To all to whom these Presents shall come, Greeting!
WHEREAS by an Act of Parliament entitled "Succession to the Crown Act 2013", it is amongst other things enacted that "a person who (when the person marries) is one of the 6 persons next in the line of succession to the Crown must obtain the consent of Her Majesty before marrying", such consent to be signified under the Great Seal, declared in Council, and recorded in the books of the Privy Council:
NOW KNOW YE that We have consented and do by these Presents signify Our Consent to the contracting of Matrimony between Our Most Dearly Beloved Grandson Prince Henry Charles Albert David of Wales, K.C.V.O., and Rachel Meghan Markle.
In Witness whereof We have caused Our Great Seal to be affixed to these Presents.
Given at Our Court at Buckingham Palace the Fourteenth day of March 2018 in the Sixty-seventh year of Our Reign.
BY THE QUEEN HERSELF SIGNED WITH HER OWN HAND