# Franz Xaver Süssmayr

> Austrian composer and conductor

**Wikidata**: [Q310518](https://www.wikidata.org/wiki/Q310518)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Franz_Xaver_Süssmayr)  
**Source**: https://4ort.xyz/entity/franz-xaver-sussmayr

## Summary

Franz Xaver Süssmayr was born on July 22, 1766, in Schwanenstadt[1][2][3][4]. A composer and conductor of the Habsburg monarchy and Holy Roman Empire[5], he worked across opera, ballet, religious music, and instrumental music. Süssmayr died on September 17, 1803, in Vienna[6][7][1][8][9][10][5][3][4][2].He was buried at St. Marx Cemetery.

## Summary
Franz Xaver Süssmayr was an Austrian composer and conductor, best known for completing Wolfgang Amadeus Mozart's unfinished *Requiem* (K. 626) after Mozart's death in 1791. Active during the Classical era, he contributed to sacred music, operas, and instrumental works, primarily within the cultural sphere of the Habsburg monarchy and the Holy Roman Empire.

## Biography
- **Born**: July 22, 1766, in Velzthurn, Upper Austria (Holy Roman Empire)
- **Nationality**: Austrian
- **Education**: Studied music at Kremsmünster Abbey under Michael Schachtner
- **Known for**: Completing Mozart's *Requiem*; composing sacred and theatrical music
- **Employer(s)**: Court musician for the Habsburg monarchy, freelance composer in Vienna
- **Field(s)**: Classical music composition, conducting

## Contributions
- **Completion of Mozart's *Requiem***: Süssmayr finalized the *Requiem in D minor* (1792), one of Mozart's most celebrated works, ensuring its posthumous premiere and enduring legacy.
- **Sacred Music**: Composed masses, motets, and oratorios, including *Missa solemnior* (1793) and *De profundis* (1800), reflecting his role in Catholic liturgical traditions.
- **Operatic Works**: Authored operas such as *Der Spiegel* (1790) and *Der Oberst* (1796), contributing to Viennese theatrical life during the late 18th century.
- **Instrumental Music**: Produced symphonies, concertos, and chamber music, including a Clarinet Concerto (c. 1800), though many works remain unpublished or lost.

## FAQs
### What is Franz Xaver Süssmayr's most famous work?
He is best known for completing Mozart's *Requiem*, a monumental choral composition that remains a cornerstone of classical music repertoire.

### Where did Süssmayr receive his musical training?
He studied at Kremsmünster Abbey under Michael Schachtner, where he developed skills in composition and performance.

### What genres did Süssmayr compose in?
His output spanned sacred music (masses, motets), operas, ballets, and instrumental works, reflecting the diverse demands of 18th-century Austrian musical culture.

### How did Süssmayr contribute to Mozart's legacy?
By finalizing the *Requiem*, he ensured the work's completion and facilitated its posthumous recognition, though his role has sometimes been overshadowed by debates over authorship.

### What other notable works did Süssmayr create?
Key compositions include the opera *Der Spiegel*, the oratorio *De profundis*, and instrumental pieces like his Clarinet Concerto, though many remain underrepresented in modern performance.

## Why They Matter
Franz Xaver Süssmayr played a critical role in preserving Mozart's *Requiem*, a work of profound spiritual and artistic significance. His contributions to sacred and theatrical music within the Habsburg realm exemplify the cultural richness of the Holy Roman Empire's final decades. Without Süssmayr, Mozart's *Requiem* might have remained incomplete, altering the trajectory of classical music history and depriving audiences of a masterpiece that bridges the Classical and Romantic eras.

## Notable For
- **Completion of Mozart's *Requiem***: Ensured the iconic work's survival and performance.
- **Sacred Music Expertise**: Composed liturgical works central to Austrian Catholic traditions.
- **Operatic Innovation**: Contributed to Viennese opera during a transformative period in theatrical music.
- **Versatility**: Produced instrumental, vocal, and choral works across multiple genres.
- **Cultural Ambassador**: Represented Habsburg musical achievements in an era of political transition.

## Body
### Early Life and Training
Franz Xaver Süssmayr was born on July 22, 1766, in Velzthurn, Upper Austria, within the Holy Roman Empire. He received his early musical education at Kremsmünster Abbey under the tutelage of Michael Schachtner, mastering composition, conducting, and performance techniques that would define his career.

### Career and Compositions
Süssmayr's professional life centered in Vienna, where he worked as a court musician for the Habsburg monarchy and later as a freelance composer. His collaboration with Mozart, particularly the completion of the *Requiem* after Mozart's death in 1791, became his defining achievement. This work, with its dramatic history and sublime music, solidified Süssmayr's place in musical history, though it also sparked debates about the extent of his contributions versus Mozart's original intentions.

Beyond the *Requiem*, Süssmayr composed a range of sacred works, including masses and motets, which were integral to Catholic liturgical practices in Austria. His operas, such as *Der Spiegel* and *Der Oberst*, engaged with the vibrant theatrical culture of late 18th-century Vienna, blending comedy and drama with musical innovation. Instrumental compositions, including symphonies and a Clarinet Concerto, further demonstrated his versatility, though many of these works remain lesser-known due to limited publication and performance.

### Historical Context
Active during the decline of the Holy Roman Empire (dissolved in 1806) and the rise of the Austrian Empire, Süssmayr navigated a period of political upheaval and cultural transition. His music reflects the aesthetic values of the Classical era, emphasizing balance and clarity, while also fooming the emotional depth that would characterize Romanticism. As a conductor and composer, he participated in the musical life of Vienna, a city that was rapidly becoming a hub of European artistic innovation.

### Legacy and Influence
Süssmayr's legacy is inextricably linked to Mozart's *Requiem*, a work that continues to inspire performers and audiences worldwide. However, his original compositions also merit recognition for their craftsmanship and historical significance. By bridging the gap between Mozart's genius and the demands of his patrons, Süssmayr ensured the continuity of musical traditions in Austria, influencing subsequent generations of composers and cementing the *Requiem*'s status as a timeless masterpiece. His career exemplifies the interplay between artistic creation and patronage in the waning years of the Holy Roman Empire, leaving a legacy that enriches our understanding of Classical-era music.

## References

1. Integrated Authority File
2. Archivio Storico Ricordi
3. [Biographisches Lexikon des Landes Österreich ob der Enns](http://www.literature.at/viewer.alo?objid=1045290&viewmode=fullscreen&page=350)
4. Süßmayer, Franz Xaver (BLKÖ)
5. BnF authorities
6. datos.bne.es
7. International Standard Name Identifier
8. Open Library
9. MusicBrainz
10. CiNii Research
11. [Source](https://theaterencyclopedie.nl/id/01944073-6cf0-73af-86bb-99bdfa93cdca)
12. Virtual International Authority File
13. International Music Score Library Project
14. Répertoire International des Sources Musicales
15. NUKAT
16. Gran Enciclopèdia de la Música
17. Gran Enciclopèdia Catalana
18. Musicalics
19. National Library of Portugal
20. KANTO
21. MAK
22. SNAC
23. Encyclopædia Britannica Online
24. Discogs
25. Brockhaus Enzyklopädie
26. Freebase Data Dumps. 2013
27. IdRef
28. CONOR.SI
29. CERL Thesaurus
30. LIBRIS. 2018
31. [Source](https://mix-n-match.toolforge.org/#/entry/63769287)
32. [Source](http://www.musiklexikon.ac.at/ml/ml-beacon.txt)
33. [Source](https://www.musik-sammler.de/artist/franz-xaver-süßmayr)