Not much new to say on this thread now so I'll just pick up on a couple of scraps
Loyal servant and now subject of HM I may be,
Think I'm right in saying that we are now no longer subjects,
Tallsar, but UK citizens (various sub- divisions of citizenship depending on your origins).
There is still the thorny issue of - can't spell - 'primo geniter'
That's 'primogeniture',
OD, always happy to oblige (once a teacher, always a teacher
).