https://edition.cnn.com/2022/06/02/europe/turkey-trkiye-unit…
In the letter addressed to UN Secretary-General António Guterres, Cavusoglu wrote: “I would like to inform you that, in line with the Presidential Circular … dated December 2, 2021, on the use of the word ‘Türkiye’ in foreign languages and the subsequent branding strategy, the Government of the Republic of Turkiye, henceforth will start using ‘Türkiye’ to replace the words such as ‘Turkey,’ ‘Turkei’ and ‘Turquie’ that have been used in the past to refer to the ‘Republic of Turkiye.’”
UN Spokesman Stephane Dujarric told CNN Thursday that the UN accepted the change, and it became effective as soon as they received the request and made sure that the document was legitimate, which was on Wednesday.
“It’s not an issue, it’s not for us to accept or not accept,” Dujarric said. "Countries are free to choose the way they want to be named.
https://en.wikipedia.org/wiki/Prince_(musician)
Jeff