Letter of wishes
Often with the will, solicitor, or a trusted person, not always legally binding but guides executors
Some steps differ by region inside the country.
Where
Stored with the will, at the solicitor, or in a home safe. It is not a legal document, so there is no central register.
How
Look wherever the will was kept, the two are usually stored together.
Ask the solicitor who drafted the will whether a letter of wishes was left with them.
Check their email and personal files for anything written to the family.
Share it with the executor and beneficiaries, since its whole purpose is to guide decisions.
This is practical information, not legal, medical, or financial advice.