Willem Blaeu was born in 1571.
Willem Blaeu died on 1638-10-21.
Willem Jansz / Janszoon was born around the year 1570. He should not be condused with Dutch cartographer Willem Jansz Blaeu who was born in 1571.
Joan Blaeu was born in 1596.
Joan Blaeu died in 1673.
Willem Thijssen was born in 1947.
Willem Wallyn was born in 1961.
Willem Allroggen was born in 1983.
Willem Cauwenberg was born in 1900.
Willem Sassen was born in 1918.
Willem Smit was born in 1935.
Willem Bilderdijk was born in 1756.
Willem Vrolik was born in 1801.