Shachar, bear in mind the last peerage created for life by the Crown other than under the Life Peerages Act or the Appellate Jurisdiction Act (which explicitly gave the power to the Crown in order to create life peerages that gave their holders a seat in the House of Lords) was the Barony of Wensleydale of Wensleydale on 16 Jan 1856.
The Wensleydale Peerage Case ruled that the grantee was not entitled to sit in the House of Lords under that title. The grantee was then created Baron Wensleydale of Walton on 23 July 1856 with regular remainder to his heirs male. The first barony’s London Gazette notice went as follows” “The Queen has been pleased to direct letters patent to be passed under the Great Seal, granting the dignity of a Baron… unto The Right Honourable Sir James Parke… for the term of his natural life, by the name, style and title of Baron Wensleydale…” (LG, No 21837, 11 Jan 1856, p 112).
The reason Prince Edward’s notice reads oddly the way it does is probably down to the fact the London Gazette publishers never had to come up with a specific wording for such a creation of a peerage for life outside the two acts of parliament above that created life peerages. In any case, the notice is actually the notice to confer, not the actual notice that the letters patent for the peerage was sealed. The wording in the London Gazette is of no significance other than the fact that Prince Edward could not sit in the House of Lords as Duke of Edinburgh (indeed even more so if the Lords indeed objected the same way the Wensleydale case individuals did so many decades ago), he would instead sit at Earl of Wessex, same way Lord Wensleydale held two baronies, but could only sit in the one created with ordinary remainder to his heirs male.
I searched through the website of the London Gazette and could not find a reference to the LG notice that the actual letters patent was sealed. The index for 2023 has not been uploaded yet either for me to search through. The letters patent have been actually sealed though.
S.S.