in the uprisings of 1830 and 1863. By 1864 80% of szlachta were déclassé – downward social mobility. One quarter of petty nobles were worse off than the average serf. While 48.9% of the land in Russian Poland was in peasant hands, nobles still held onto 46%. In the Second Polish Republic the privileges of the nobility were legally abolished by the March Constitution in 1921 and as such not reinstated by any succeeding Polish law. Cultural and international connections Despite preoccupations with warring, politics and status, the szlachta in Poland, as did people from all social classes, played its part in contributing in fields ranging from literature, art and architecture, philosophy, education, agriculture and the many branches of science, to technology and industry. Perhaps foremost among the cultural determinants of the nobility in Poland were its continuing international connections with the Rome-based Catholic Church. It was from the ranks of the szlachta that were drawn the church's leading Prelates until the 20th century. Other international influences came through the more or less secretive and powerful Christian and lay organisations such as the Sovereign Military Order of Malta, focused on hospital and other charitable activity. The most notable Polish Maltese Knight was the Pozńan commander, Bartłomiej Nowodworski, founder in 1588 of the oldest school in Poland. One alumnus was John III Sobieski. In the 18th century, after several false starts, international Freemasonry, wolnomularstwo, from western lodges, became established among the higher échelons of the szlachta, and in spite of membership of some clergy, it was intermittently but strongly opposed by the Catholic Church. After the partitions it became a cover for opposition to the occupying powers. Also in the 18th century there was a marked development in Patronage of the arts during the reign of Stanisław August Poniatowski, himself a freemason, and with the growth of social awareness, in Philanthropy. Women as purveyors of culture High-born women in Polish–Lithuanian Commonwealth exerted political and cultural influence throughout history in their own country and abroad, as queens, princesses and the wives or widows of magnates. Their cultural activities came into sharper relief in the 18th century with their hosting of salons in the French manner. They went on to publish as translators and writers and as facilitators of educational and social projects. Notable women members of the szlachta who exerted political and/or cultural influence include: Queen Jadwiga (1373 ог 1374–1399) Bona Sforza