 At that time Wiśniowiecki also engaged in a political conflict over nobility titles , in particular , the title of prince ( <unk> ) . The nobility in the Commonwealth was officially equal , and used different and non @-@ hereditary titles then those found in rest of the world ( see officials of the Polish @-@ Lithuanian Commonwealth ) ; the <unk> of the conflict , which took much of the Sejm 's time around 1638 – 41 , revolved around whether old prince titles ( awarded to families before their lands were incorporated into the Commonwealth in the 1569 Union of <unk> ) , and the new titles , awarded more recently by some foreign courts , should be recognized . Wiśniowiecki was one of the chief participants in this debate , successfully defending the old titles , including that of his own family , and succeeding in abolishing the new titles , which gained him the enmity of another powerful magnate , Jerzy <unk> . Other than this conflict , in his years as a deputy ( <unk> – 46 ) , Jeremi wasn 't involved in any major political issues , and only twice ( in 1640 and 1642 ) he served in the minor function of a <unk> for investigating the eastern and southern border disputes . 
