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Kazimierz Łyszczyński
Kazimierz Łyszczyński, portrait.jpg
Born (1634-03-04)4 March 1634
Died 30 March 1689(1689-03-30) (aged 55)
Warsaw, Polish–Lithuanian Commonwealth
Cause of death Execution
Nationality Polish
Other names Casimir Liszinski
Notable work
On the non-existence of God
Era Age of Enlightenment
Region
Main interests
Religious skepticism
Notable ideas
Atheism in Poland

Kazimierz Łyszczyński (born March 4, 1634 – died March 30, 1689) was a Polish nobleman, philosopher, and soldier. He is known for being accused and executed for atheism in 1689. His case is often seen as a sad example of religious persecution in Poland's history.

Kazimierz studied philosophy for eight years with the Jesuits. After leaving the order, he became a judge. He wrote a book called On the Non-Existence of God. This book led to his trial and execution.

Kazimierz Łyszczyński's Life

Early Life and Work

POL COA Lyszczynski
Coat of Arms of Kazimierz Łyszczyński

Kazimierz Łyszczyński was born in Łyszczyce, a place now in Belarus. He was a nobleman, meaning he came from an important family and owned land. He was also a philosopher, someone who thinks deeply about life and knowledge.

He studied philosophy with the Jesuits for eight years. Later, he worked as a judge, handling legal cases. He was also a member of the Sejm, which was like the parliament of Poland.

Kazimierz read a book by Henry Aldsted that tried to prove God's existence. However, Kazimierz found many confusing parts in it. He wrote in the book's margins, "ergo non-est Deus" which means "therefore God does not exist."

The Accusation and Trial

One of Kazimierz's debtors, Jan Kazimierz Brzoska, found these notes. Brzoska owed Kazimierz a lot of money. Instead of paying, he accused Kazimierz of being an atheist. He showed Kazimierz's notes to a bishop named Witwicki. Brzoska also stole a handwritten copy of Kazimierz's book, De non-existentia Dei. This book was the first Polish philosophical work that looked at the world from an atheist point of view.

2009 drawing Kazimierz Łyszczyński execution
2009 Belarusian drawing of Łyszczyński's execution.

Bishops Witwicki and Załuski eagerly took on the case. King John III Sobieski tried to help Kazimierz. He ordered that Kazimierz should be judged in Vilnius. However, the clergy, or church leaders, still had a lot of power.

Kazimierz was arrested even before he was found guilty, which was against the law for nobles. His case went before the parliament in 1689. He was accused of denying God's existence and speaking badly about the Virgin Mary and saints. He was found guilty and sentenced to death for atheism.

Execution

Kazimierz Łyszczyński was executed in the Old Town Market Place in Warsaw. This happened on March 30, 1689.

De non-existentia Dei

Kazimierz Łyszczyński wrote a book called De non-existentia Dei, which means On the Non-Existence of God. In this book, he argued that God does not exist. He also wrote that religions are ideas created by people.

The parliament ordered his book to be destroyed. However, some parts of it were saved because they were read out during his trial. These parts show his ideas:

  • He questioned how theologians could talk about God when they gave God qualities that seemed to contradict each other.
  • He suggested that humans create the idea of God. He believed God is not a real being but an idea that exists only in our minds.
  • He thought that religion was made up by people who weren't religious themselves. They did this to gain power and be worshipped. He believed that the fear of God was spread by those who weren't afraid, so others would fear them.
  • He felt that simple people were tricked by cleverer people using the idea of God. This was done to control them.
  • He also argued that there is no clear reason or proof within us that shows divine revelation is true. If it were true, everyone would believe it without doubt. He pointed out that different religions exist, and some wise people deny revelation.

During his trial, Kazimierz said that his book was meant to be a debate. He claimed it would show a Catholic winning against an atheist. He said he only wrote the atheist's part and stopped writing on a priest's advice.

Kazimierz Łyszczyński Today

Agnieszka Wolk-Laniewska as Kazimierz Lyszczynski
Agnieszka Wołk-Łaniewska acting as Kazimierz Łyszczyński during a reenactment of his execution in Warsaw (2023).

In modern Poland, especially during the communist era, Kazimierz Łyszczyński became known as a hero for atheists. A philosopher named Andrzej Nowicki wrote about him. Nowicki said that Kazimierz was one of the most brilliant Polish thinkers of his time. He praised Kazimierz's wide knowledge and bold ideas.

However, not much is truly known about Kazimierz Łyszczyński. Most of what we know comes from notes taken during his trial. His importance as a symbol for atheists has led to many writings about him. People wonder what his full ideas were, since his book was destroyed.

In March 2014, Kazimierz Łyszczyński's story was part of a public event. His execution was even reenacted during a procession of atheists in Poland.

See also

  • Enlightenment in Poland
  • History of philosophy in Poland
  • Irreligion in Poland
  • Religion in Lithuania
  • Religion in Belarus
  • Religion in Poland
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