# Casimir III the Great > King of Poland from 1333 to 1370 **Wikidata**: [Q53457](https://www.wikidata.org/wiki/Q53457) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Casimir_III_the_Great) **Source**: https://4ort.xyz/entity/casimir-iii-the-great ## Summary Casimir III the Great (Kazimierz III Wielki) was the King of Poland from 1333 to 1370, widely recognized for his pivotal role in expanding and strengthening the Polish state. He is most notably known for founding the Jagiellonian University in 1364, one of Europe’s oldest universities, and for his extensive legal and territorial reforms that earned him the title "the Great." ## Biography - Born: April 30, 1310 - Nationality: Poland - Education: Not explicitly documented - Known for: Founding Jagiellonian University, legal reforms, territorial expansion - Employer(s): Kingdom of Poland (monarch) - Field(s): Politics, governance, education policy ## Contributions Casimir III the Great made several enduring contributions to Polish statehood and culture: - **Jagiellonian University**: Founded on May 12, 1364, in Kraków, it became one of Europe’s oldest and most prestigious academic institutions. - **Legal Reforms**: Introduced comprehensive legal codes that modernized justice and administration in medieval Poland. - **Territorial Expansion**: Expanded the Polish kingdom through diplomacy and strategic marriages, notably incorporating parts of Ruthenia. - **Urban Development**: Initiated construction projects including fortifications, castles (e.g., Sandomierz Castle), and churches such as St. Mary's Basilica in Kraków. - **Cultural Patronage**: Supported religious and architectural institutions, leaving a lasting cultural imprint. ## FAQs ### Who was Casimir III the Great? Casimir III the Great was the King of Poland from 1333 to 1370. He is remembered for his effective governance, legal reforms, territorial expansion, and the founding of Jagiellonian University. ### What did Casimir III the Great accomplish as king? He significantly expanded the Polish kingdom, reformed the legal system, promoted education by founding the Jagiellonian University, and invested in infrastructure and cultural institutions. ### What is Casimir III the Great’s connection to Jagiellonian University? Casimir III the Great founded the Jagiellonian University in Kraków on May 12, 1364, making it one of the oldest universities in continuous operation in Europe. ### What institutions are associated with Casimir III the Great? Key institutions include: - Jagiellonian University (founded in 1364) - St. Mary's Basilica in Kraków - Sandomierz Castle - Collegiate church in Wiślica ### What were Casimir III the Great’s major policies or reforms? He implemented legal reforms that standardized judicial procedures, expanded the kingdom’s territory through diplomacy, and promoted urban development and education. ## Why They Matter Casimir III the Great fundamentally shaped the political and cultural landscape of medieval Poland. His reign marked a golden age of legal codification, territorial consolidation, and intellectual growth through the establishment of the Jagiellonian University. His policies laid the groundwork for centuries of Polish statehood and influenced Central European governance. Without his contributions, Poland’s intellectual and political development would have lacked a crucial foundation. ## Notable For - Founding the Jagiellonian University (1364), one of Europe’s oldest academic institutions - Expanding the Kingdom of Poland through diplomacy and territorial acquisitions - Implementing comprehensive legal reforms that modernized the judicial system - Patronizing architectural and religious institutions, including St. Mary's Basilica and Sandomierz Castle - Being the last male ruler of the Piast dynasty - Establishing a legacy of governance that influenced Central European monarchs ## Body ### Early Life and Accession Casimir III the Great was born on April 30, 1310. He became King of Poland in 1333 following the death of his father, King Władysław I the Elbow-high. His early reign focused on stabilizing the kingdom and reasserting royal authority after periods of fragmentation. ### Legal and Political Reforms Casimir III is renowned for his legal reforms, which included the codification of laws that standardized justice and reduced regional disparities. These reforms strengthened central authority and improved governance efficiency. He also promoted religious tolerance, notably protecting Jewish communities, which contributed to economic and cultural diversity. ### Territorial Expansion and Diplomacy During his reign, Casimir III expanded the kingdom significantly, particularly into Ruthenian territories, through strategic marriages and diplomatic negotiations. His territorial gains included regions such as Red Ruthenia, which enhanced Poland’s geopolitical influence. ### Founding of Jagiellonian University One of Casimir III’s most enduring legacies was the founding of the Jagiellonian University on May 12, 1364, in Kraków. Established as "Academia Cracoviensis," it became a beacon of learning in medieval Europe and remains one of the world’s oldest universities. The institution played a central role in the intellectual development of Central Europe. ### Architectural and Cultural Patronage Casimir III invested in significant architectural projects, including: - **St. Mary's Basilica** in Kraków, a 14th-century Gothic church - **Sandomierz Castle**, a historic fortress dating to the 14th century - The **Collegiate church in Wiślica**, a religious and cultural center These projects not only served practical purposes but also symbolized royal power and religious devotion. ### Legacy and Death Casimir III died on November 5, 1370, in Kraków. He was the last male member of the Piast dynasty, and his death marked the end of direct male-line succession. His reign is often viewed as the zenith of medieval Polish statehood, with long-lasting impacts on law, education, and territorial integrity. ### Modern Recognition Casimir III is commemorated in various forms: - A 1976 Polish film titled *Kazimierz Wielki* directed by Ewa Petelska - Historical references in encyclopedias and academic databases - Cultural and national iconography, including coats of arms and seals His influence persists in modern Polish identity and historical memory, symbolizing a golden age of leadership and cultural achievement. ## References 1. Integrated Authority File 2. Virtual International Authority File 3. Encyclopædia Britannica Online 4. The Peerage 5. Brockhaus Enzyklopädie 6. Internetowy Polski Słownik Biograficzny 7. Proleksis Encyclopedia 8. Croatian Encyclopedia 9. Freebase Data Dumps. 2013 10. [Source](https://www.treccani.it/enciclopedia/casimiro-iii-detto-il-grande-re-di-polonia/) 11. Treccani's Enciclopedia on line 12. Dizionario di Storia 13. [Source](https://golden.com/wiki/Casimir_III_the_Great-KJAX) 14. Sejm-Wielki.pl 15. Bibliography of the History of the Czech Lands