Philip of Saint-Pol and the Political Struggles…

Philip of Saint-Pol and the Political Struggles in Brabant (1419–1422)

Philip of Saint-Pol, younger brother of Duke John IV of Brabant, played a crucial role in the political turmoil of Brabant and the dynastic conflicts surrounding Jacqueline of Bavaria. His tenure as ruwaard (regent) of Brabant (1420–1421) saw rising opposition to his brother’s rule, but following their reconciliation in 1421, Philip stepped down, allowing John IV to regain full ducal power.

To secure support from the citizenry, John IV expanded city privileges and increased the authority of the States of Brabant in 1422, an act known as the Nieuw Regiment. This strengthened his position in the ongoing conflict against Jacqueline of Bavaria and her new husband, Humphrey, Duke of Gloucester, whom he refused to recognize as her legitimate spouse.

I. Philip of Saint-Pol’s Role in Brabant (1419–1421)

• In 1419, Philip commanded the Burgundian forces occupying Paris, enforcing Burgundian control in the aftermath of John the Fearless’ assassination.
• By 1420, he returned to Brabant, where the populace grew dissatisfied with John IV’s misadministration.
• Philip was declared ruwaard (regent) of Brabant, effectively stripping John IV of power.

II. The Reconciliation of 1421 and the Nieuw Regiment (1422)

• In 1421, Philip reconciled with his brother and resigned as regent, restoring John IV’s ducal authority.
• To secure the support of the Brabantine citizenry, John IV granted expanded privileges to the cities and increased the power of the States of Brabant in 1422.
• This measure, known as the Nieuw Regiment, gave the Brabantine Estates more influence over governance, strengthening urban autonomy while stabilizing ducal power.

III. The Brabantine Support for John IV Against Jacqueline of Bavaria (1422–1428)

• With Brabant now behind him, John IV focused on defending his authority against Jacqueline of Bavaria, his estranged wife.
• Jacqueline had remarried Humphrey, Duke of Gloucester, who pressed her claim to Holland and Zeeland.
• John IV never accepted the annulment of his marriage to Jacqueline, and he was later vindicated by Pope Martin V in 1428 (albeit posthumously), further undermining Jacqueline’s legitimacy.

IV. Consequences and Legacy

• The Nieuw Regiment (1422) helped balance the power dynamics in Brabant, allowing greater urban autonomy while preserving ducal authority.
• The dispute over Jacqueline’s marriage contributed to the larger struggle for control over Holland, Zeeland, and Hainaut, which would ultimately be decided in favor of Burgundy.
• Philip of Saint-Pol’s brief regency (1420–1421) and reconciliation with John IV played a pivotal role in shaping Brabant’s political structure in the early 15th century.

The power struggle between John IV, Jacqueline of Bavaria, and Humphrey of Gloucester defined the political landscape of Brabant and the Low Countries, as the ducal house of Burgundy gradually absorbed more territories through calculated diplomacy and military action.