Final answer:
William of Orange's fleet, which he used to invade England in 1688, was four times the size of the Spanish Armada of 1588. Based on this, his armada might have consisted of roughly 520 ships, although the exact number is not specified in the reference material.
Step-by-step explanation:
The student has inquired about the number of ships William came over on, which is likely referring to William of Orange's invasion of England in 1688. This historical event is part of the Glorious Revolution, where William, the Prince of Orange, amassed a large fleet to depose King James II of England.
While the exact number of ships is not provided in the reference material, it is noted that William's armada was "four times the size" of the Spanish Armada of 1588, which comprised 130 ships. If we take this into consideration, William of Orange's fleet could be estimated to have consisted of approximately 520 ships.
However, without a specific historical account providing an exact number, this figure should be treated as an educated estimation rather than a conclusive fact.