County of Zeeland in the context of "House of Wittelsbach"

The Republic of the Seven United Netherlands (Dutch: Republiek der Zeven Verenigde Nederlanden), also known as the United Provinces (of the Netherlands), and referred to in historiography as the Dutch Republic, was a confederation and great power that existed from 1588 until the Batavian Revolution in 1795. It was a predecessor state of the present-day Netherlands and the first independent Dutch nation state. The republic was established after seven Dutch provinces in the Spanish Netherlands revolted against Spanish rule, forming a mutual alliance against Spain in 1579 (the Union of Utrecht) and declaring their independence in 1581 (the Act of Abjuration), after which they confederated in 1588 (the Instruction of 12 April 1588) after the States General could not agree on a new monarch. The seven provinces it comprised were Groningen (present-day Groningen), Frisia (present-day Friesland), Overijssel (present-day Overijssel), Guelders (present-day Gelderland), Utrecht (present-day Utrecht), Holland (present-day North Holland and South Holland), and Zeeland (present-day Zeeland).

Although the state was small and had only around 1.5 million inhabitants, it controlled a worldwide network of seafaring trade routes. Through its trading companies, the Dutch East India Company (VOC) and the Dutch West India Company (GWC), it established a Dutch colonial empire. The income from this trade allowed the Dutch Republic to compete militarily against much larger countries. Major conflicts were fought in the Eighty Years' War against Spain (from the foundation of the Dutch Republic until 1648), the Dutch–Portuguese War (1598–1663), four Anglo-Dutch Wars (1652–1654, 1665–1667, 1672–1674, and 1780–1784), the Franco-Dutch War (1672–1678), War of the Grand Alliance (1688–1697), the War of the Spanish Succession (1702–1713), the War of Austrian Succession (1744–1748), and the War of the First Coalition (1792–1795) against the Kingdom of France.

William III and II (William Henry; Dutch: Willem Hendrik; 4 November 1650 – 8 March 1702), also known as William of Orange, was the sovereign Prince of Orange from birth, Stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel in the Dutch Republic from 1672, and King of England, Ireland, and Scotland from 1689 until his death in 1702. He ruled England, Scotland, and Ireland with his wife, Queen Mary II, and their joint reign is known as that of William and Mary.

William was the only child of William II, Prince of Orange, and Mary, Princess Royal, the daughter of King Charles I of England, Scotland, and Ireland. His father died before his birth, making William III the prince of Orange from birth. In 1677, he married his first cousin Mary, the elder daughter of his maternal uncle James, Duke of York (later King James II).

Philip III the Good (French: Philippe le Bon; Dutch: Filips de Goede; 31 July 1396 – 15 June 1467) ruled as Duke of Burgundy from 1419 until his death in 1467. He was a member of a cadet line of the House of Valois, to which all 15th-century kings of France belonged. During his reign, the Burgundian State reached the apex of its prosperity and prestige, and became a leading centre of the arts.

Duke Philip has a reputation for his administrative reforms, for his patronage of Flemish artists (such as Jan van Eyck) and of Franco-Flemish composers (such as Binchois), and for the 1430 seizure of Joan of Arc, whom Philip ransomed to the English after his soldiers captured her, resulting in her trial and eventual execution. In political affairs, he alternated between alliances with the English and with the French in an attempt to improve his dynasty's powerbase. Additionally, as ruler of Flanders, Brabant, Limburg, Artois, Hainaut, Holland, Luxembourg, Zeeland, Friesland and Namur, he played an important role in the history of the Low Countries.

The history of the Netherlands extends back before the founding of the modern Kingdom of the Netherlands in 1815 after the defeat of Napoleon. For thousands of years, people have been living together around the river deltas of this section of the North Sea coast. Records begin with the four centuries during which the region formed a militarized border zone of the Roman Empire. As the Western Roman Empire collapsed and the Middle Ages began, three dominant Germanic peoples coalesced in the area – Frisians in the north and coastal areas, Low Saxons in the northeast, and the Franks to the south. By 800, the Frankish Carolingian dynasty had once again integrated the area into an empire covering a large part of Western Europe. The region was part of the duchy of Lower Lotharingia within the Holy Roman Empire, but neither the empire nor the duchy were governed in a centralized manner. For several centuries, medieval lordships such as Brabant, Holland, Zeeland, Friesland, Guelders and others held a changing patchwork of territories.

By 1433, the Duke of Burgundy had assumed control over most of Lower Lotharingia, creating the Burgundian Netherlands. This included what is now the Netherlands, Belgium, Luxembourg, and a part of France. When their heirs the Catholic kings of Spain took measures against Protestantism, the subsequent Dutch revolt led to the splitting in 1581 of the Netherlands into southern and northern parts. The southern "Spanish Netherlands" corresponds approximately to modern Belgium and Luxembourg, and the northern "United Provinces" (or "Dutch Republic)", which spoke Dutch and was predominantly Protestant, was the predecessor of the modern Netherlands.

Frederick Henry (Dutch: Frederik Hendrik; 29 January 1584 – 14 March 1647) was the sovereign prince of Orange and stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel in the Dutch Republic from his older half-brother's death on 23 April 1625 until his death on 14 March 1647. In the last seven years of his life, he was also the stadtholder of Groningen (1640-1647).

As the leading soldier in the Dutch wars against Spain, his main achievement was the successful Siege of 's-Hertogenbosch in 1629. It was the main Spanish base and a well-fortified city protected by an experienced Spanish garrison and by formidable water defenses. His strategy was the successful neutralization of the threat of inundation of the area around 's-Hertogenbosch' and his capture of the Spanish storehouse at Wesel. The successful sieges under his command earned him the epithet ‘city forcer’ (Dutch: stedendwinger). He was the paternal grandfather of William III, who later became King of England, Scotland & Ireland, through his only surviving son, William II.