Descendants of Claas van der PLAS & Weijntgen Crijnen
First Generation 
1. Jacob van der PLAS was born in 1525 in Katwijk, , Zuid-Holland, Netherlands.1
Jacob married someone.
His children were:
+ 2 M i. Claas Jacobsz van der PLAS was born in 1550 in Katwijk, , Zuid-Holland, Netherlands1 and died in 1614 in Katwijk, , Zuid-Holland, Netherlands,1 aged 64.
+ 3 F ii. Arendje van der PLAS was born in 1555 in Katwijk aan Zee, , Zuid-Holland, Netherlands.2
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