Marie de Beaumont1
She was the eventual heiress of Beaumont-le-Vicomte in Maine, and both the Houses of Alençon and Bourbon descended from her in the female line.1
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Guillaume Chamaillart, Seigneur d’Antenaise1
He gained the title of Seigneur d’Antenaise.1
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Marguerite de Poitiers1
Children of Marguerite de Poitiers and Jean II, Vicomte de Beaumont
- Louis II de Brienne, Vicomte de Beaumont1 d. 6 May 1364
- Geoffrey, Seigneur du Lude1 d. b 1360
- Jeanne de Beaumont1
- Marguerite de Beaumont1 d. a 1373
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Aymer IV, Comte de Valentinois1
Child of Aymer IV, Comte de Valentinois
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Louis II de Brienne, Vicomte de Beaumont1

He gained the title of Vicomte de Beaumont.1 He fought in the Battle of Cocherel on 6 May 1364.1
Isabelle de Bourbon-La Marche1,2 
Bouchard VII de Vendôme, Comte de Vendôme et Castres1 
He gained the title of Comte de Castres.1 He gained the title of Comte de Vendôme.1
Geoffrey, Seigneur du Lude1 
He gained the title of Seigneur du Lude.1
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Jeanne, Dame de Beaucay1 
She gained the title of Dame de Beaucay.1
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Hugues, Seigneur de Beaucay1
Child of Hugues, Seigneur de Beaucay
- Jeanne, Dame de Beaucay1 d. Mar 1402
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
