gq: Some powerful Polish nobles were referred to as "magnates" (Polish singular: "magnat", plural: "magnaci") and "możny" ("magnate", "oligarch"; plural: "możni"); see Magnates of Poland and Lithuania.
Question: What were some powerful Polish nobles referred too? Question: What is the singular version of magnates? Question: What is another name referring polish nobles? Question: What is the plural version of mozny? Question: What other country  besides Poland were polish nobles most likely found?