# Žižkův dub
**Wikidata**: [Q10296152](https://www.wikidata.org/wiki/Q10296152)  
**Source**: https://4ort.xyz/entity/zizkuv-dub

## Summary
Žižkův dub (Žižka's Oak) was a remarkable tree of the species *Quercus robur* located in Benešov, Czech Republic. Named after the famed Hussite military leader Jan Žižka, this notable oak was demolished or dissolved in 1980 and is now classified as a former entity that no longer exists.

## Key Facts
- **Species**: *Quercus robur* (pedunculate oak)
- **Location**: Benešov, Czech Republic
- **Coordinates**: Latitude 49.7808, Longitude 14.6514
- **Named After**: Jan Žižka, the renowned Hussite military leader
- **Instance Of**: Remarkable tree, former entity
- **Dissolved/Demolished Date**: 1980
- **Commons Category**: Žižkův dub (Konopiště)
- **Google Knowledge Graph ID**: /g/1218f74k
- **Sitelink Count**: 2 (Commons, Czech Wikipedia)
- **Image Available**: https://commons.wikimedia.org/wiki/Special:FilePath/Žižkův_dub_Konopiště_(6835).jpg

## FAQs

**What was Žižkův dub and where was it located?**
Žižkův dub was a remarkable pedunculate oak tree situated in Benešov, Czech Republic, at coordinates 49.7808°N, 14.6514°E. It was associated with the Konopiště area.

**Who was the tree named after?**
The tree was named after Jan Žižka, a prominent Czech military leader famous for his role in the Hussite Wars.

**Does Žižkův dub still exist?**
No, the tree was demolished or dissolved in 1980. It is now classified as a former entity that no longer exists in the present day.

**Where can documentation about this tree be found?**
Documentation exists on Wikimedia Commons under the category "Žižkův dub (Konopiště)," on Czech Wikipedia, and in the Google Knowledge Graph with ID /g/1218f74k.

## Why It Matters
Žižkův dub represents an important piece of Czech natural and cultural heritage. As a remarkable tree named after one of the most significant figures in Czech history—the Hussite military leader Jan Žižka—it served as a living monument connecting the landscape to national historical memory. Its preservation in knowledge bases after its 1980 demolition demonstrates the importance of maintaining records of significant natural features even after their physical existence ends. For historians, botanists, and cultural heritage professionals, Žižkův dub illustrates how digital knowledge systems can keep alive the memory of lost natural monuments, enabling future research and understanding of changing landscapes.

## Notable For
- **Historical Commemoration**: Named after Jan Žižka, one of the most celebrated military commanders in Czech and European history
- **Botanical Significance**: A documented specimen of *Quercus robur*, one of Europe's most iconic native tree species
- **Digital Preservation**: Maintains presence across multiple knowledge platforms including Google Knowledge Graph, Wikidata, and Wikimedia Commons despite physical demolition
- **Dual Classification**: Holds the rare distinction of being classified as both a "remarkable tree" and a "former entity" in structured knowledge systems
- **Precise Geospatial Record**: Documented with exact coordinates, enabling accurate historical mapping of lost natural heritage

## Body

### Location and Geography
Žižkův dub was situated in Benešov, a town in the Central Bohemian Region of the Czech Republic. The tree's precise geographic coordinates were recorded as latitude 49.7808 and longitude 14.6514. Its commons category designation as "Žižkův dub (Konopiště)" associates it with the Konopiště area, a region known for its castle and historical significance.

### Botanical Identity
The tree belonged to the species *Quercus robur*, commonly known as the pedunculate oak or English oak. This species is native to most of Europe and is characterized by its longevity and imposing stature. The property "individual_of_taxon" identifies Žižkův dub specifically as a member of this taxon.

### Naming and Historical Connection
The tree was named after Jan Žižka, a legendary Czech military leader who played a pivotal role in the Hussite Wars of the 15th century. Žižka is remembered as one of history's most successful military commanders, known for his innovative tactics and undefeated record in battle. The naming of this oak after Žižka reflects the deep cultural tradition in the Czech lands of commemorating national heroes through landscape features.

### Classification and Status
Žižkův dub holds dual classification in knowledge systems:
- **Remarkable Tree**: Denoting its status as a noteworthy individual tree specimen worthy of documentation
- **Former Entity**: Indicating its current status as an entity that no longer operates or exists

The "former entity" classification (Wikidata ID: Q64139102) specifically marks subjects that once existed but have since ceased to function or exist in their original capacity. This classification places Žižkův dub in the temporal category of "past," distinguishing it from current entities, proposed entities, and hypothetical entities.

### Demolition and Aftermath
The tree was dissolved, abolished, or demolished in 1980, as recorded in Wikidata with references to source Q191168. Following its demolition, Žižkův dub transitioned from a living natural monument to a historical entity existing only in documentation and memory. The circumstances surrounding its demolition are not detailed in the available sources.

### Digital Presence and Documentation
Despite its physical absence, Žižkův dub maintains a structured digital footprint:

- **Wikimedia Commons**: Hosts at least one photograph of the tree (file: Žižkův_dub_Konopiště_(6835).jpg), categorized under "Žižkův dub (Konopiště)"
- **Wikipedia**: Presence in two language versions—Wikimedia Commons and Czech Wikipedia (cs)
- **Google Knowledge Graph**: Assigned the identifier /g/1218f74k
- **Wikidata**: Contains structured data including geographic coordinates, species classification, named-after relationship, and dissolution date

### Relationship to the Former Entity Concept
As a former entity, Žižkův dub exemplifies how knowledge systems handle subjects that have ceased to exist. The concept of "former entity" (Wikidata ID: Q64139102, BabelNet ID: 00101101a) is defined as an entity that no longer operates or has been terminated. This classification is fundamental to accurate historical record-keeping, allowing databases to distinguish between active and historical subjects.

The former entity concept is recognized globally with aliases in multiple languages, including "defunct entity" and "discontinued" in English, "antigua entidad" and "entidad extinta" in Spanish, "ancienne entité" and "élément qui a existé" in French, "Entität" and "ehemalig" in German, "過去の事物" and "過去のエンティティ" in Japanese, "исчезнувшая сущность" and "историческая сущность" in Russian, and "옛날에 있었던 개체" in Korean.

### Data Provenance
The structured data for Žižkův dub, including its location, coordinates, and classifications, references source Q191168 in Wikidata. This ensures verifiability and traceability of the recorded information, supporting data integrity across knowledge platforms.