In 1389, Louis married Valentina Visconti, daughter of Gian Galeazzo, Duke of Milan.
The union produced eight children:
A son (born and died Paris, 25 March 1390), buried in Paris église Saint-Paul.

Louis (Paris, Hôtel de Saint-Pol, 26 May 1391 - September 1395), buried Paris église des Célestins.

John (September 1393 - Château de Vincennes, bef.
31 October 1393), buried Paris église des Célestins.

Charles, Duke of Orléans (Hôtel royal de Saint-Pol, Paris, 24 November 1394 - Château d'Amboise, Indre-et-Loire, 4 January 1465), father of Louis XII, King of France.

Philip, Count of Vertus (Asnières-sur-Oise, Val d'Oise, 21/24 July 1396 - Beaugency, Loiret, 1 September 1420).
Left a natural son Philip Anthony, called the Bastard of Vertus who died about 1445; no issue.

John, Count of Angoulême (24 June 1399 – Château de Cognac, Charente, 30 April 1467), grandfather of Francis I of France
Marie (Château de Coucy, Aisne, April 1401 - died shortly after birth).

Margaret (4 December 1406 - Abbaye de Laguiche, near Blois, 24 April 1466), married Richard of Brittany, Count of Étampes.
She received the County of Vertus as a dowry.
Ancestors of the Dukes of Brittany and Lords of Chalon-Arlay and Prince of Orange.

By Mariette d'Enghien, his mistress, Louis had an illegitimate son:
John of Dunois (1402–1468), ancestor of the Dukes of Longueville
In 1389, Louis married Valentina Visconti, daughter of Gian Galeazzo, Duke of Milan. The union produced eight children:
A son (born and died Paris, 25 March 1390), buried in Paris église Saint-Paul.
Louis (Paris, Hôtel de Saint-Pol, 26 May 1391 - September 1395), buried Paris église des Célestins.
John (September 1393 - Château de Vincennes, bef. 31 October 1393), buried Paris église des Célestins.
Charles, Duke of Orléans (Hôtel royal de Saint-Pol, Paris, 24 November 1394 - Château d'Amboise, Indre-et-Loire, 4 January 1465), father of Louis XII, King of France.
Philip, Count of Vertus (Asnières-sur-Oise, Val d'Oise, 21/24 July 1396 - Beaugency, Loiret, 1 September 1420). Left a natural son Philip Anthony, called the Bastard of Vertus who died about 1445; no issue.
John, Count of Angoulême (24 June 1399 – Château de Cognac, Charente, 30 April 1467), grandfather of Francis I of France
Marie (Château de Coucy, Aisne, April 1401 - died shortly after birth).
Margaret (4 December 1406 - Abbaye de Laguiche, near Blois, 24 April 1466), married Richard of Brittany, Count of Étampes. She received the County of Vertus as a dowry. Ancestors of the Dukes of Brittany and Lords of Chalon-Arlay and Prince of Orange.
By Mariette d'Enghien, his mistress, Louis had an illegitimate son:
John of Dunois (1402–1468), ancestor of the Dukes of Longueville
Louis I, Duke of Orléans