Mikołaj Sienicki of Bończa (c. 1521-1582) was a notable member of the landed gentry of the Kingdom of Poland. He held the office of chamberlain of the land of Chełm and was a notable politician of his period. Considered one of the best Polish political orators, he also held the title of marshal of the Sejm nine times. A Protestant, near the end of his life he became a member of the Polish Brethren and one of the major initiators of, and contributors to the Warsaw Confederation, which introduced new laws of religious tolerance in the Polish-Lithuanian Commonwealth, on a scale unimaginable in contemporary Europe.
Mikołaj Sienicki was born around 1521, to Stanisław Sienicki and Barbara née Boryszewska. In 1535 he started studies at the Jagiellonian University, one of the oldest universities in Europe. Soon afterwards he took active interest in politics, joining his father in the sessions of the local parliament (sejmik) of his home region (Chełm land or ziemia chełmska). He was chosen several times as a royal legate to those diets, and gained much respect and popularity among his peers.
The Sejm career
After the death of his father he was already an established politician. In 1550 he was elected by the sejmik of Chełm to be a region's deputy for the national Sejm. On this very Sejm Sienicki gained fame with his famous critique of the senators, whom he accused of not providing any assistance to the king, and for his critique of the king himself (Zygmunt II August at that time was in a dispute with much of the nobility over his marriages). This would not be the last of his speeches in the Sejm; over the next few years he would gain fame as the Polish Demosthenes .
From 1553 on he was an active member of the executionist movement, a political party of the middle nobility, opposing the magnates and attempting to reform the country. He would be a vocal member of the group demanding the return of the Crown Lands held illegally by the magnates, the enforcement of the incompatibilitas rule, and reform of the starost office in order to strengthen the law enforcement in Poland. He was also an expert on parliamentary law, and is often considered to have introduced or popularized many legal terms in Poland . He was a supporter of the closer Polish-Lithuanian union, and a strong advocate of the Union of Lublin which transformed the previous personal union between Kingdom of Poland and the Grand Duchy of Lithuania into the new country of Polish-Lithuanian Commonwealth. In the realm of religion he was a supporter of Reformation and various institutions like Akademia Rakowicka. At the same time he also criticized Polish Catholics for their dependence on Rome, while supporting those - like Jakub Uchański - who wanted more independence for local, Polish religious hierarchy and even the creation of a Polish national church.
Over the 30 years of his political career Mikołaj would take part in 22 out of 25 national Sejms (from 1550 to 1583). He had enormous support of the other deputies: he was often chosen as the deputies' delegate to the king and senators, and held the temporary office of the marshal of the Sejm 9 times (Piotrków 15.05.-26.07.1550, Kraków 1.02.-29.03.1553, Piotrków 22.04.-15.06.1555, Warsaw 6.12.1556-14.01.1557, Piotrków 5.12.1558-8.02.1559, Warsaw 22.11.1563-1.04.1564, Parczew 24.06.-12.08.1564; Piotrków 18.01.-14.04.1556, election sejm at Wola 7.11.-15.12.1575). No other politician in Polish history would ever come close to his record.
He was widely respected for his dedication to the country, when majority of politicians tried to gain more offices and wealth. Until the end of his life he was content with the minor office of podkomorzy of Chełm, and was never known to step on the wrong side of the law.
The confederation of Warsaw and royal elections
Sienicki was one of the initiators of the Warsaw Confederation. A vocal supporter of religious tolerance and the need for national unity, he strongly criticized the delaying tactics of the Catholic clergy which threatened the political stability of the newly founded Commonwealth during the uneasy time of the interregnum. After the confederation had been signed, he was one of the major supporters (together with other pro-reform minded Polish politicians like kanclerz Jan Zamoyski) of the inclusion of its provisions in the Henrician articles and later in the pacta conventa. He also supported the creation of the Crown Tribunal and other reforms of the Polish-Lithuanian State.
He criticized the archbishop of Gniezno who declared himself the temporary ruler (interrex); he also criticized magnates who wanted to elect a Habsburg candidate to the Polish throne. Together with middle and lesser nobility he supported the election of Henry III of France and later Stefan Batory to the Polish throne.
- (Polish) Mikołaj Sienicki (ok. 1521-1583) on Sejm.Gov
- (Polish) Siennica Różana
- (Polish) DWA BEZKRÓLEWIA — KONFEDERACJA WARSZAWSKA ks. dr Tadeusz Wojak
- Stanisław Grzybowski, 1957, 'Odrodzenie i Reformacja w Polsce', t.2, "Mikołaj Sieniawski. Demostenes sejmów polskich"