Editing James Louis Sobieski (section)

===Dynastic plans in Silesia and Ducal Prussia===
{{See also|Treaty of Jaworów}}
The young prince was also drawn into his parents' dynastic plans, which only further inflamed the aristocracy's antipathy towards the [[Sobieski family]]. Despite efforts by his parents at the Vienna court, they were unable to secure for Jakub rule over the Duchies of [[Duchy of Legnica|Legnica]], [[Duchy of Brzeg|Brzeg]], [[Wołów]], and [[Oława]] in [[Silesia]] after the Piast dynasty died out in 1675. This led Jakub' father Jan III Sobieski to put a plan together to seize power in [[Ducal Prussia]] and elevate his son. The [[secret treaty]] of [[Treaty of Jaworów|Jaworów]] signed in 1675 between the Polish king-Lithuanian grand duke and France committed Poland to aid France against [[Brandenburg-Prussia]] in exchange for French monetary subsidies and support for Polish claims over [[Ducal Prussia]].<ref name="Penson1">{{cite book|author1=Oskar Halecki |author2=W: F. Reddaway |author3=J. H. Penson |title=The Cambridge History of Poland|url=https://books.google.com/books?id=N883AAAAIAAJ&pg=PA542|publisher=CUP Archive|isbn=978-1-00-128802-4|page=542}}</ref><ref name="Zamoyski2009">{{cite book|author=Adam Zamoyski|title=Poland: A History|url=https://books.google.com/books?id=EEU_AQAAIAAJ|year=2009|publisher=Harper Press|isbn=978-0-00-728275-3|page=167}}</ref> The French promised to mediate between Poland and the Ottoman Empire so that Polish forces could be diverted from the southern border.<ref name="Magill2013">{{cite book|author=Frank N. Magill|title=The 17th and 18th Centuries: Dictionary of World Biography|url=https://books.google.com/books?id=HaHdAAAAQBAJ&pg=PA726|date=13 September 2013|publisher=Routledge|isbn=978-1-135-92414-0|page=726}}</ref>

The treaty failed however, as French diplomats were unable to improve the relations between Polish-Lithuanian Commonwealth and the Ottomans.<ref name="Magill2013"/><ref name="Young2004">{{cite book|author=William Young|title=International Politics and Warfare in the Age of Louis XIV and Peter the Great: A Guide to the Historical Literature|url=https://books.google.com/books?id=wErzZ_lUWAQC&pg=PA429|date=1 September 2004|publisher=iUniverse|isbn=978-0-595-32992-2|page=429}}</ref> The [[Truce of Żurawno]] signed the following year was unfavorable to Poland-Lithuania.<ref name="Magill2013"/><ref name="Young2004"/> France eventually concluded the [[Treaty of Nijmegen]] with Prussia in 1679. This cooled France's relations with Poland, as Sobieski abandoned his pro-French stance. The Polish-French alliance had completely fallen apart by 1683 when some of the pro-French faction members within Poland were accused of plotting to overthrow Sobieski, and French ambassador Nicolas-Louis de l'Hospital, Bishop of Beauvais and Marquis of Vitry were forced to leave the country.<ref name=psb417>Red. (Eds.), ''Jan III Sobieski'', p.417</ref>

The failure of this plan prompted the king to promote Prince Jakub through participation in the war against the Ottoman Empire. In this way, King Jan was aiming to gain social acceptance for an increased role for the prince, who he hoped would become the second most important person in the Commonwealth after himself. These efforts culminated in the fifteen-year-old prince fighting alongside his father against the [[Ottoman Empire|Turks]] at the [[Battle of Vienna]] in 1683. In line with his parents' ambitions for him, Prince Jakub was a member of the [[Order of the Golden Fleece]] a Catholic [[order of chivalry]] which has been referred to as the most elite brotherhood in the [[Christianity|Christian faith]].