Ashelen,
I think what you are refering to are Royal Family Orders.
They vary from country to country but are generally bestowed upon royal ladies as "gifts" or aknowledgements of loyal service by reigning monarchs.
If you look at the Royal Jewels threads you will find "Royal Family Orders" and "Royal Orders and Decorations". These might be a good couple of threads to review on thei subject.
Hope this helps.
ps. here is a teaser of Pns Margaret wearing 3 Royal Family Orders