A bit more background: William II, 24, suddenly died in 1650; 8 days later his son was born, the future William III. The anti-war, anti-Orange faction thus saw its chance to promote peace and trade rather than more war -- the 1648 Treaty of Westphalia had finally concluded not only the 30-years' war in Germany, but also ended the Dutch 80-year war for independence from Spain.
The young William III who became Stadholder after DeWitt's demise later became England's William III as well, he of William and Mary fame. Both Williams married Stuart daughters named Mary.
A bit more background: William II, 24, suddenly died in 1650; 8 days later his son was born, the future William III. The anti-war, anti-Orange faction thus saw its chance to promote peace and trade rather than more war -- the 1648 Treaty of Westphalia had finally concluded not only the 30-years' war in Germany, but also ended the Dutch 80-year war for independence from Spain.
The young William III who became Stadholder after DeWitt's demise later became England's William III as well, he of William and Mary fame. Both Williams married Stuart daughters named Mary.