When the Calvinists took control of various parts of the Netherlands in the Dutch Revolt, the Catholics led by  Philip II of Spain fought back.
The king sent in Alexander Farnese as Governor-General of the Spanish Netherlands from 1578 to 1592.

Farnese led a successful campaign 1578–1592 against the Dutch Revolt, in which he captured the main cities in the south Spanish – Belgium and returned them to the control of Catholic Spain.
He took advantage of the divisions in the ranks of his opponents between the Dutch-speaking Flemish and the French-speaking Walloons, using persuasion to take advantage of the divisions and foment the growing discord.
By doing so he was able to bring back the Walloon provinces to an allegiance to the king.
By the treaty of Arras in 1579, he secured the support of the 'Malcontents', as the Catholic nobles of the south were styled.

The seven northern provinces as well as Flanders and Brabant, controlled by Calvinists, responded with the Union of Utrecht, where they resolved to stick together to fight Spain.
Farnese secured his base in Hainaut and Artois, then moved against Brabant and Flanders.
City after city fell: Tournai, Maastricht, Breda, Bruges and Ghent opened their gates.

Farnese finally laid siege to the great seaport of Antwerp.
The town was open to the sea, strongly fortified, and well defended under the leadership of Marnix van St. Aldegonde.
Farnese cut off all access to the sea by constructing a bridge of boats across the Scheldt.
The city surrendered in 1585 as 60,000 Antwerp citizens (60 per cent of the pre-siege population) fled north.
All of the southern Netherlands was once more under Spanish control.

In a war composed mostly of sieges rather than battles, he proved his mettle.
His strategy was to offer generous terms for surrender: there would be no massacres or looting; historic urban privileges were retained; there was a full pardon and amnesty; return to the Catholic Church would be gradual.

Meanwhile, Catholic refugees from the North regrouped in Cologne and Douai and developed a more militant, Tridentine identity.
They became the mobilizing forces of a popular Counter-Reformation in the South, thereby facilitating the eventual emergence of the state of Belgium.
When the Calvinists took control of various parts of the Netherlands in the Dutch Revolt, the Catholics led by  Philip II of Spain fought back. The king sent in Alexander Farnese as Governor-General of the Spanish Netherlands from 1578 to 1592.
Farnese led a successful campaign 1578–1592 against the Dutch Revolt, in which he captured the main cities in the south Spanish – Belgium and returned them to the control of Catholic Spain. He took advantage of the divisions in the ranks of his opponents between the Dutch-speaking Flemish and the French-speaking Walloons, using persuasion to take advantage of the divisions and foment the growing discord. By doing so he was able to bring back the Walloon provinces to an allegiance to the king. By the treaty of Arras in 1579, he secured the support of the 'Malcontents', as the Catholic nobles of the south were styled.
The seven northern provinces as well as Flanders and Brabant, controlled by Calvinists, responded with the Union of Utrecht, where they resolved to stick together to fight Spain. Farnese secured his base in Hainaut and Artois, then moved against Brabant and Flanders. City after city fell: Tournai, Maastricht, Breda, Bruges and Ghent opened their gates.
Farnese finally laid siege to the great seaport of Antwerp. The town was open to the sea, strongly fortified, and well defended under the leadership of Marnix van St. Aldegonde. Farnese cut off all access to the sea by constructing a bridge of boats across the Scheldt. The city surrendered in 1585 as 60,000 Antwerp citizens (60 per cent of the pre-siege population) fled north. All of the southern Netherlands was once more under Spanish control.
In a war composed mostly of sieges rather than battles, he proved his mettle. His strategy was to offer generous terms for surrender: there would be no massacres or looting; historic urban privileges were retained; there was a full pardon and amnesty; return to the Catholic Church would be gradual.
Meanwhile, Catholic refugees from the North regrouped in Cologne and Douai and developed a more militant, Tridentine identity. They became the mobilizing forces of a popular Counter-Reformation in the South, thereby facilitating the eventual emergence of the state of Belgium.
Counter-Reformation