THE DATE BEHIND THE NAME
Willem Johan Kolff
Dutch medical researcher (1911–2009)
Willem Johan Kolff was born on February 14, 1911 in Leiden, Netherlands and died on February 11, 2009, aged 97.
Born
February 14, 1911
Willem Johan Kolff died aged 97.
Died: February 11, 2009
Source:
Synchronized from Wikidata on October 5, 2026.
- Birthplace
- Leiden, Netherlands
- Professions
- resistance fighter, physician, university teacher, inventor, internist, rescue of Jews during the Holocaust
- Citizenship
- Kingdom of the Netherlands, United States
More about Willem Johan Kolff
- Zodiac sign
- Aquarius
All birth date sources
A source is P248 “stated in” or a non-Wikimedia reference URL. Import-only references do not qualify.
- Find a Grave
- Integrated Authority File
- Base biographique
- Munzinger Personen
- The Righteous Among the Nations Database
- BnF authorities
- SNAC
- KNAW Past Members
Synchronized from Wikidata on October 5, 2026. View Wikidata record
Questions people ask
How old was Willem Johan Kolff when they died?
Willem Johan Kolff died aged 97.
When is Willem Johan Kolff’s birthday?
Willem Johan Kolff’s recorded birthday is February 14.
Where was Willem Johan Kolff born?
Willem Johan Kolff was born in Leiden, Netherlands.
When did Willem Johan Kolff die?
Willem Johan Kolff died on February 11, 2009.