Although some people refer to a “family crest” and a “coat of arms” interchangeably, there is a difference. A crest is an element or part of a coat of arms, but not the entire arms.

Moreover, Colleoni's coat of arms did, in fact, feature an illustration of three pairs of testicles. Therefore, we have rated this claim as "Mostly True." ...

After discovering that her ancestor had invented his own coat of arms in the 16th century, Mattie Kahn enlisted jeweler Briony Raymond to turn the family crest into a modern heirloom.