Which number?

Master list (pdf) of all 602 L-numbers, their Leeuwenhoek number, and their Collected Letters number

Life in Holland

Other name:

Pieter

Antony's:

visitor and correspondent

Baptism:

1641

Burial:

1712

Lawyer and diplomat from Amsterdam

spent two decades in Switzerland

owned the largest fossil collection in Europe

What happened?

Date	Event
March 30, 1705	Visited by Pieter Valkenier

Learn more

Learn more about ...
Period 5 - 1702-1712

Related letters:

What Leeuwenhoek wrote ...
Wrote Letter L-418 of 1704-02-11 to Pieter Valckenier about rock crystal, its origins in the mountains, and fossils of ocean fish found in his Swiss mountains