 In 1571 he married Anna Ossolińska ; his wife and their young son died shortly afterwards , in 1572 . After the extinction of the Jagiellon dynasty in 1572 during the election sejm ( special session of the Commonwealth parliament ) he used his influence to enforce the viritim election ( meaning all nobles had the right to vote for the new king during the upcoming Polish – Lithuanian royal election , 1573 ) . However , his proposal for majority voting did not pass , which opened the process for abuses of liberum veto in the future . He was a colleague of Mikołaj Sienicki and Hieronim Ossolinski , and with them he was one of the leaders of a faction of the lesser and middle nobility ( szlachta ) in the Commonwealth , whose goal was the reform the country - the execution movement - preserving the unique constitutional and parliamentary government of the Commonwealth with the dominant role of poorer nobility ( Golden Freedom ) . He was so influential and popular among the lesser nobility that he was known as the " first tribune of nobility " or " Polish Gracchus . " 
