National Museum in Warsaw in the context of Veit Stoss

Konrad Wallenrod is an 1828 narrative poem, in Polish, by Adam Mickiewicz, set in the 14th-century Grand Duchy of Lithuania.

Mickiewicz wrote it, while living in St. Petersburg, Russia, in protest against the late-18th-century partitions of the Polish–Lithuanian Commonwealth by the Russian Empire, the Kingdom of Prussia, and the Habsburg monarchy.

Stańczyk (Full title: Stańczyk during a ball at the court of Queen Bona in the face of the loss of Smolensk, Polish: Stańczyk w czasie balu na dworze królowej Bony wobec straconego Smoleńska) is a painting by Jan Matejko finished in 1862. This painting was acquired by the National Museum in Warsaw in 1924. During World War II it was looted by the Nazis, but later seized by the Soviet Union and returned to Poland around 1956.

It is one of Matejko's most famous works and the one that launched him to fame. It has been described by the Warsaw National Museum as one of the most recognizable paintings in its collection, and is a flagship painting for the "Collection of Polish paintings prior to 1914". Its primary component is the contrast between the solemn Stańczyk (a historical Polish court jester and the painting's namesake) and the lively ball in the background. The painting presents Stańczyk with a sense of isolation and hopelessness, which reflects the political situation of Poland during the 19th century.

Loneliness is an unpleasant emotional response to perceived or actual isolation. Loneliness is also described as social pain – a psychological mechanism that motivates individuals to seek social connections. It is often associated with a perceived lack of connection and intimacy. Loneliness overlaps and yet is distinct from solitude. Solitude is simply the state of being apart from others; not everyone who experiences solitude feels lonely. As a subjective emotion, loneliness can be felt even when a person is surrounded by other people.

The causes of loneliness are varied. Loneliness can be a result of genetic inheritance, cultural factors, a lack of meaningful relationships, a significant loss, an excessive reliance on passive technologies (notably the Internet in the 21st century), or a self-perpetuating mindset. Research has shown that loneliness is found throughout society, including among people in marriages along with other strong relationships, and those with successful careers. Most people experience loneliness at some points in their lives, and some feel it often.

Giovanni Battista Cima, also called Cima da Conegliano (c. 1459 – c. 1517), was an Italian Renaissance painter, who mostly worked in Venice. He can be considered part of the Venetian school, though he was also influenced by Antonello da Messina, in the emphasis he gives to landscape backgrounds and the tranquil atmosphere of his works.

Once formed his style did not change greatly. He mostly painted religious subjects, often on a small scale for homes rather than churches, but also a few, mostly small, mythological ones. He often repeated popular subjects in different versions with slight variations, including his Madonnas and Saint Jerome in a Landscape. His paintings of the Madonna and Child include several variations of a composition that have a standing infant Jesus, which in turn are repeated several times.

Fra Diamante (c. 1430 – c. 1498) was an Italian Renaissance painter.

Lisowczyks or Lisowczycy (Polish pronunciation: [lisɔfˈt͡ʂɨt͡sɨ]; also known as Straceńcy ('lost men' or 'forlorn hope') or chorągiew elearska (company of elears [pl]); or in singular form: Lisowczyk or elear) was the name of an early 17th-century irregular unit of the Polish–Lithuanian light cavalry. The Lisowczycy took part in many battles across Europe and the historical accounts of the period characterized them as extremely agile, warlike, and bloodthirsty. Their numbers varied with time, from a few hundred to several thousand.

The origin of the group can be traced to konfederacja (a form of semi-legal mutiny of royal forces, practiced in the Kingdom of Poland and then in the Commonwealth), organized around 1604 by Aleksander Józef Lisowski. They began to grow in strength and fame a few years later, when Lisowski's irregulars were incorporated into the forces fighting in Muscovy. The Lisowczycy unit of the Polish cavalry received no formal wages; instead, they were allowed to loot and plunder as they pleased. They relied on their speed and fought without tabors, foraging supplies from lands they moved through. The Lisowczycy were feared and despised by civilians wherever they passed and they gained dubious fame for the scores of atrocities they carried out (pillage, rape, murder, and other outrages). However, they were also grudgingly respected by their opponents for their military skills. They did not hesitate to plunder even their homeland, where they sacked the Racovian Academy university of the Polish Brethren. Such actions were among the reasons the Commonwealth ruler Sigismund III Vasa tried to keep them away from the Commonwealth for as long as possible.