Thank you for the reply. So what order should I proceed in? Deed poll, request Latvian passport change and then - first British passport?

Hello, I’ve obtained the naturalisation certificate back in 2019, but haven’t applied for my first Uk 🇬🇧 passport yet. I have a dual citizenship ( Latvia and Uk). I got married in 2021 and want to change my surname, also to make my maiden surname - my middle name. And get the first uk passport. What ...