Okay kiddo, so a long time ago there was a country called Ruthenia (roo-THEE-nee-uh) in Europe. The people who were important and powerful in Ruthenia were called nobles. These nobles were a group of people who were born into important families and were very wealthy.
Being a noble meant that you had special privileges and rights that normal people didn't have. For example, you didn't have to pay some taxes, you could own lots of land, and you could even be a judge.
The Ruthenian nobles were really proud of their status and they worked hard to maintain it. They would compete with each other to show who had the best clothes, the biggest houses, and the most horses. They even had their own language that they used to talk to each other!
One of the most important things about being a Ruthenian noble was being able to trace your family back many generations. This was called having a "noble pedigree". The nobles would keep family trees that showed all their ancestors going back to the beginning of their family.
Being a Ruthenian noble was a pretty good life back then, but eventually, Ruthenia became part of other countries and the nobles lost some of their special rights. Nowadays, there are still people who can trace their ancestry back to the Ruthenian nobles, but they don't have the same status that their ancestors did.