Ah, that's a typical Dutch name.
In case you really don't know, it means 'quiet'.
For a Dutchman, that means a compliment 

I'm preferring to use these adjectives ( quiet isn't condusive to posting )... Bas used to put 2 "R"s on his hands before fighting
calm, low-keyed, peaceful, placid, relaxed, serene, subdued, tranquil, unruffled
Ron asked me to return calmly so I am attempting to do my best