The recent information despatched by Saint Aldegonde confirmed him in his purpose.
There had been much wrangling between the Popish functionaries and those of the Reformed religion concerning the constitution of the burgher guard.

The Calvinists could feel no security for their own lives, or the repose of the commonwealth of Holland, unless they were themselves allowed a full participation in the government of those important bands.
They were, moreover, dissatisfied with the assignment which had been made of the churchyards to the members of their communion.

These causes of discord had maintained a general irritation among the body of the inhabitants, and were now used as pretexts by Bardez for his design.

He knew the city to be ripe for the overthrow of the magistracy, and he had arranged with Governor Sonoy to be furnished with a sufficient number of well-tried soldiers, who were to be concealed in the houses of the confederates.

A large number of citizens were also ready to appear at his bidding with arms in their hands.
On the 24th of May, he wrote to Sonoy, begging him to hold himself in readiness, as all was prepared within the city.