Many references on he Glorious Revolution of 1688 mention some details regarding the composition of the expeditionary force of the prince of Orange. Notorious is of course the Wikipedia entry for the Glorious Revolution, which contains many errors and urban legends.
One of the issues that kept the author busy is the mentioning of Swiss regiments in this invasion force. The Dutch history of the Republican Army (Het Staatsche Leger by ten Raa en de Bas) states that no Swiss troops were part of the Dutch Army in 1688, let alone part of the invading army. (Swiss regiments were first recruited in the 1690s.) However, the assumption by other, non Dutch, authors that Swiss regiments formed part of the invasion force must have an origin.
In issue 25 of Armentaria, the magazine of the friends of the Dutch Army Museum, an article is found by Dr. F. G. de Wilde on the Cent Suisses, a Swiss bodyguard in service of the stadhouders of the Dutch Republic. A pdf copy is found here.
Since 1672, stadhouder William of Orange had employed a number of Swiss halberdiers in his personal service. Perhaps their role is comparable to that of the Gentlemen Pensioners, and the Yeomen of the Guard in England. As such, these Swiss were never part of the establishment of the army. After the death in 1702 of William of Orange, the Cent Suisses were disbanded on 1 January 1703, the men being drafted into the Swiss regiment in the Dutch Army.
The number Swiss grew to 190, and it may be very likely that they accompanied William of Orange to England in November 1688. Which may have led in turn to the misunderstanding that Swiss regiments formed part of the invading army.