Royals vs. Nobles, 1500s

From The Gates of Europe: A History of Ukraine, by Serhii Plokhy (Basic Books, 2017), Kindle pp. 107-109:

ALL OVER EUROPE, the sixteenth century was marked by the strengthening of royal authority, centralization of the state, and regularization of political and social practices. The other side of the coin was increasing aristocratic opposition to the growth of royal power, which in the Polish-Lithuanian case came from the aristocratic houses of the grand duchy, many of them deeply rooted in the princely tradition of Kyivan Rus’ and Galicia-Volhynia. But in the mid-sixteenth century, elite opposition to increasing royal power diminished in response to the growing external threat to the grand duchy, which it could meet only with the help of Poland. The threat came from the east, where in the course of the fifteenth century a major new power had been rising: the Grand Duchy of Muscovy.

In 1476 Grand Prince Ivan III, the first Muscovite ruler to call himself tsar, declared the independence of his realm from the Horde and refused to pay tribute to the khans. He also launched a campaign of “gathering the Rus’ lands,” taking Novgorod, Tver, and Viatka and laying claim to other Rus’ lands outside the former Mongol realm, including those of today’s Ukraine. In the last decades of the fifteenth century, the newly created Tsardom of Muscovy and the Grand Duchy of Lithuania entered into a prolonged conflict over the heritage of Kyivan Rus’. Muscovy was on the offensive, and by the early sixteenth century the grand dukes had to recognize the tsar’s rule over two of their former territories, Smolensk and Chernihiv. It was the first time that Muscovy had established its rule over part of what is now Ukraine.

The westward advance of Muscovy, stopped by the grand dukes at the beginning of the sixteenth century, resumed in the second half. In 1558, Ivan the Terrible, the decisive and charismatic but also erratic, brutal, and ultimately self-destructive tsar of Muscovy, attacked Livonia, a polity bordering on the grand duchy that included parts of what are now Latvia and Estonia, starting the Livonian War (1558–1583), which would last for a quarter century and involve Sweden, Denmark, Lithuania, and eventually Poland. In 1563, Muscovite troops crossed the borders of the grand duchy, taking the city of Polatsk and raiding Vitsebsk (Vitebsk), Shkloŭ (Shklov), and Orsha (all in present-day Belarus). This defeat mobilized support for the grand duchy’s union with Poland among the lesser Lithuanian nobility.

In December 1568 Sigismund Augustus, who was both king of Poland and grand duke of Lithuania, convened two Diets in the city of Lublin—one for the kingdom, the other for the grand duchy—in the hope that their representatives would hammer out conditions for the new union. The negotiations began on a positive note, as the two sides agreed to the joint election of the king, a common Diet, or parliament, and broad autonomy for the grand duchy, but the magnates would not return the royal lands in their possession—the principal demand of the Polish nobility. The Lithuanian delegates packed their bags, assembled their retinues of noble clients, and left. This move backfired. Unexpectedly for the departing Lithuanians, the Diet of the Kingdom of Poland began to issue decrees, with the king’s blessing, transferring one province of the grand duchy after another to the jurisdiction of the Kingdom of Poland.

The Lithuanian magnates who had feared losing their provinces to Muscovy were now losing them to Poland instead. To stop a hostile takeover by their powerful Polish partner, the Lithuanians returned to Lublin to sign an agreement dictated by the Polish delegates. They were too late. In March 1569, the Podlachia palatinate on the Ukrainian-Belarusian-Polish ethnic border went to Poland. Volhynia followed in May, and on June 6, one day before the resumption of the Polish-Lithuanian talks, the Kyivan and Podolian lands were transferred to Poland as well. The Lithuanian aristocrats could only accept the new reality—they stood to lose even more if they continued to resist the union. In his magisterial depiction of the Lublin Diet, Jan Matejko, a famous nineteenth-century Polish artist, portrayed the chief opponent of the union, Mikalojus Radvilas, on his knees but with his sword drawn in front of the king.

The Union of Lublin created a new Polish-Lithuanian state with a single ruler, to be elected by the nobility of the whole realm, and a single Diet. It extended the freedoms of the Polish nobility to their counterparts in the Grand Duchy of Lithuania, which maintained its own offices, treasury, judicial system, and army. The new state, called the Commonwealth of Both Nations—Polish and Lithuanian—was a quasi-federal polity dominated by the geographically expanded and politically strengthened Kingdom of Poland. The kingdom incorporated the Ukrainian palatinates not as a group but one by one, with no guarantees but those pertaining to the use of the Ruthenian (Middle Ukrainian) language in the courts and administration and the protection of the rights of the Orthodox Church.