Jaureguy was instantly killed and it was afterwards found that he had, for the sake of the reward, been instigated to the deed by his master, a merchant named Caspar Anastro.

Anjou, who was at first suspected of being accessory to the crime, was thus exculpated.

It was a terrible wound and William's life was for some time in great danger; but by the assiduous care of his physicians and nurses he very slowly recovered, and was strong enough, on May 2, to attend a solemn service of thanksgiving.

The shock of the event and the long weeks of anxiety were however too heavy a strain upon his wife, Charlotte de Bourbon, who had recently given birth to their sixth daughter.

Her death, on May 5, was deeply grieved by the prince, for Charlotte had been a most devoted helpmeet and adviser to him throughout the anxious years of their married life.
During the whole of the summer and autumn William remained at Antwerp, patiently trying to smooth away the difficulties caused by the dislike and suspicion felt by the Netherlanders for the man whom they were asked to recognise as their sovereign.