Willem de Rooij was born in 1969.
Theo de Rooij was born in 1957.
Jessica de Rooij was born on April 1, 1981, in Bergisch Gladbach, Germany.
Mirjam de Rooij was born on September 27, 1963, in Zierikzee, Zeeland, Netherlands.
Nathalie de Rooij was born on April 2, 1973, in Tilburg, Noord-Brabant, Netherlands.
Olaf de Rooij was born on April 14, 1962, in Bussum, Noord-Holland, Netherlands.
Willem de Keyser was born in 1647.
Willem De Looper was born in 1932.
Willem de Zwart was born in 1862.
Willem de Poorter was born in 1608.
Willem de Clercq was born in 1795.
Willem de Mérode was born in 1887.
Willem de Sitter was born on May 6, 1872.