What day of the week was April 5, 1566?

The day of the week April 5th, 1566 fell on was a Tuesday.

Two-hundred Dutch noblemen the led by Hendrik van Brederode, force themselves into the presence of Margaret of Parma and present the Petition of Compromise, denouncing the Spanish Inquisition in the Netherlands. The Inquisition is suspended and a delegation is sent to Spain to petition Philip II.