# Piet Keizer

> Dutch footballer (1943–2017)

**Wikidata**: [Q368492](https://www.wikidata.org/wiki/Q368492)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Piet_Keizer)  
**Source**: https://4ort.xyz/entity/piet-keizer

## Summary
Piet Keizer was a Dutch association football player who lived from 1943 to 2017. He is recognized as a human member of the species Homo sapiens and a professional athlete within the Kingdom of the Netherlands. His primary identity is that of a footballer who played the sport of association football during his lifetime.

## Biography
- Born: 1943 (specific date and place not provided in source material)
- Nationality: Dutch (citizen of the Kingdom of the Netherlands)
- Education: Not specified in source material
- Known for: Playing association football as a professional athlete
- Employer(s): Not specified in source material
- Field(s): Association football (soccer)

## Contributions
The provided source material does not list specific papers, products, companies founded, patents, or open-source projects created by Piet Keizer. The only concrete contribution identified is his participation as an association football player. He is categorized under the entity "association football player," defined as a person who plays association football (soccer). No specific matches, goals, or team victories are detailed in the provided text.

## FAQs
**What was Piet Keizer's profession?**
Piet Keizer worked as an association football player, which is defined as a person who plays the sport of soccer. This was his primary occupation during his life from 1943 until his death in 2017.

**What is the nationality of Piet Keizer?**
He was Dutch, holding citizenship within the Kingdom of the Netherlands. This transcontinental sovereign state and constitutional monarchy is the nation associated with his identity.

**When did Piet Keizer live?**
His lifespan is recorded as 1943 to 2017. These dates mark the beginning and end of his life as a human member of the species Homo sapiens.

## Why They Matter
Piet Keizer's significance lies in his role as a documented figure in the history of Dutch association football. As a human who played the sport, he contributed to the cultural and athletic landscape of the Kingdom of the Netherlands. Without individuals like him, the historical record of Dutch football would lack specific biographical entries that define the era of his play. His existence as a "Dutch footballer" is a verified fact within the knowledge base, linking the concepts of nationality, sport, and human identity.

## Notable For
- Being identified as a Dutch footballer in biographical records.
- Living during the period from 1943 to 2017.
- Being classified as a human and a member of the species Homo sapiens.
- Playing the sport of association football (soccer).
- Having a Wikipedia title dedicated to his life ("Piet Keizer").
- Being associated with the Kingdom of the Netherlands.

## Body

### Identity and Classification
Piet Keizer is fundamentally classified as a human, representing a single member of Homo sapiens, the unique extant species of the genus Homo. His specific role within society is defined by the entity "association football player," which describes a person who plays association football (soccer). This classification links him to a broader category of individuals with a sitelink count of 65, indicating a significant network of related entries in the knowledge base. He is further categorized under the sitelink count of 273 for the general concept of "human."

### Nationality and State Affiliation
Keizer's nationality is Dutch, connecting him directly to the Kingdom of the Netherlands. This state is described as a transcontinental sovereign state and a constitutional monarchy. The inception of this political entity is noted with two specific dates: March 16, 1815, which is marked as the preferred inception date, and December 15, 1954, which includes the qualifier "Charter for the Kingdom of the Netherlands." His identity is inextricably linked to this nation, which holds a sitelink count of 108 in the knowledge base.

### Life Span and Existence
The biographical data confirms that Piet Keizer lived from 1943 to 2017. These dates establish the temporal boundaries of his existence as a human being. The description "Dutch footballer (1943–2017)" serves as the primary identifier for his life story. No other specific dates regarding his birth, death, or career milestones are provided in the source material.

### Digital Presence and Metadata
In the context of digital knowledge organization, Piet Keizer has a specific Wikipedia title: "Piet Keizer." The structured data indicates a sitelink count of 38 for this specific entry. The Wikidata description explicitly summarizes him as a "Dutch footballer (1943–2017)." While SEO data is noted as unavailable, the structured properties confirm his presence in major knowledge repositories. The source material does not provide details on specific awards, records, or leadership roles beyond his general classification as a player.

## References

1. Transfermarkt
2. FBref
3. [Ajax-icoon Piet Keizer (73) overleden. Sport1](http://www.telegraaf.nl/telesport/27603554/__Ajax-icoon_Piet_Keizer__73__overleden__.html)
4. Freebase Data Dumps. 2013
5. UEFA.com