Wilhelmus m DutchLatinized form of
Wilhelm. This is also the official Dutch form of the name, used on birth certificates but not commonly in daily life.
Willem m DutchDutch form of
William. Willem the Silent, Prince of Orange, was the leader of the Dutch revolt against Spain that brought about the independence of the Netherlands. He is considered the founder of the Dutch royal family. In English he is commonly called William of Orange.
Xander m Dutch, English (Modern)Short form of
Alexander. It was popularized in the English-speaking world by a character on the television series
Buffy the Vampire Slayer (1997-2003).