Nobles in this country were granted equality after the passage of the Golden Liberty. A ruler of this country known as "the Brave" was the first to unite it, and was a member of the Piast dynasty. Members of this country's nobility also sat in its legislature, in which all members had a veto power that nullified the laws passed in any given session. That legislature was called the Sejm ["same"]. After the signing of the Union of Lublin, this nation formed a commonwealth with Lithuania. A king of this nation relieved a siege at Vienna, turning back an Ottoman invasion of Europe. For 10 points, name this nation which wa
Nobles in this country were granted equality after the passage of the Golden Liberty. A ruler of this country known as "the Brave" was the first to unite it, and was a member of the Piast dynasty. Members of this country's nobility also sat in its legislature, in which all members had a veto power that nullified the laws passed in any given session. That legislature was called the Sejm ["same"]. After the signing of the Union of Lublin, this nation formed a commonwealth with Lithuania. A king of this nation relieved a siege at Vienna, turning back an Ottoman invasion of Europe. For 10 points, name this nation which was ruled by men like Jan III Sobieski from Warsaw.