Antoninus
Welcome to History page and I apologise for the delay in welcoming you. Just can't get the staff these day, don't you know?
Heraldry is as old as man's vanity. Take Germany where they have a higher proportion of aristocrats compared with us since each pre-unification state had its own set of aristocracy and more layers, such as Count we don't have.
For example, at the Battle of The Standard, 10,000 knights fought each other. Now, that's 10,000 armigerous families. 800 years ago when England had a population of what? (Gussing here). 11/2 milliuon? That is one in 150 with aristocratic blood.
You say "family shield". Do you have an express grant from the College of Arms to prove your family is armigerous? Or are you more concerned with a general representative coat of arms. Do you have crest, supporters, motto, and insignia?
Just a few comments. very vague very thin. What about you? Where are you living?
Cheers
Peter