The Polish nobility, there are many notable differences. The most striking feature of the system is, that a coat of arms does not belong to one family, but a number of unrelated families (sometimes hundreds of them ) Coat also called cooperative. A name does not automatically equal arms equality. Originally the Polish nobility and created a pure warrior class in the struggle with the royal power something unique in Europe - an aristocratic republic with an elected king at the top (an elected president for life)