Louis de Brienne
Parents
- Jean Ier de Brienne (c. 1175 - 1237), chevalier, empereur latin de Constantinople
- Berenguela de Castilla
Family
- Married on February 12, 1253, with Agnès de Beaumont-au-Maine (1215 - 1301), vicomtesse de Beaumont-au-Maine, issuing
