Complex sentence: One of King Willem-Alexander's titles is "the Count of Buren", and the Dutch Royals have been known to use the name van Buren as an alias to give them some degree of anonymity.
Split into simpler sentences: One of King Willem-Alexander's titles is "the Count of Buren". The Dutch Royals have been known to use the name van Buren as an alias, to give them some degree of anonymity.