Henry III of Nassau-Breda

Henry III was appointed Stadholder of Holland by the Habsburgs, serving as the chief governor of the county. This position placed him in charge of administering justice, collecting taxes, and leading military forces in the region, solidifying his role as a key Habsburg official in the Low Countries.

Henry III became chamberlain to Emperor Charles V, a position of high trust and influence at the imperial court. This role allowed him to advise the emperor and manage access to him, enhancing his political standing and facilitating his involvement in imperial affairs.

Henry III fought in the War of the League of Cognac on the side of Charles V against the French and their allies. He commanded troops in Italy, including at the Siege of Rome in 1527, contributing to the Habsburg victory that led to the sack of Rome.

Henry III participated in the Imperial army's siege and sack of Rome. The city was captured and plundered by mutinous troops, leading to the death of thousands and the temporary imprisonment of Pope Clement VII. This event marked a low point in the Italian Wars.

Henry III was involved in the negotiations for the Treaty of Cambrai, also known as the Ladies' Peace, which ended the War of the League of Cognac. The treaty confirmed Habsburg control over Italy and required France to abandon its claims in Italy, solidifying Charles V's dominance.