Following his exploits at Chocim, he was elected King John III following the death of King Michael, but he fought his most famous battle in July of 1683 when he came to the aid of Count Stahremberg and pitted his 75,000 men against an army of more than 200,000.  
One of the richest nobles in his country, he was made Commander-in-Chief of the army for helping expel the Swedes.  His granddaughter Clementina married James Edward Stuart and was the mother of "Bonnie Prince Charlie."  Following his exploits at Chocim, he was elected King John III following the death of King Michael, but he fought his most famous battle in July of 1683 when he came to the aid of Count Stahremberg and pitted his 75,000 men against an army of more than 200,000.  FTP, name this Polish king who lifted the Turkish siege of Vienna and ruled Poland until 1696.
One of the richest nobles in his country, he was made Commander-in-Chief of the army for helping expel the Swedes.  
Jan Sobieski (accept John III [or Jan III] before it is mentioned)