John Tristan of France Capet Count of Valois and Never [11381] ²⁴

   Cause of his death was dysentery.

  General Notes:

http://www.hull.ac.uk/php/cssbct/cgi-bin/gedlkup.php/n=royal?royal12337

http://en.wikipedia.org/wiki/John_Tristan,_Count_of_Valois


Has ancestry chart in Wikipedia

  Medical Notes:

John accompanied his father during the Eighth Crusade , which reached Tunis in July after setting out from Cagliari on Sardinia . But at Tunis the army suffered an outbreak of dysentery . John Tristan was one of the victims who died of it, and three weeks later, St. Louis also succumbed to the disease. Both bodies were transported to France and buried in the Basilica of St Denis .

  Noted events in his life were:

• Acceded: Count of Nevers, 1265. was jure uxoris Count of Nevers from 1265 to 1270

• Acceded: Count of Valois and Crépy, 1268. Count of Auxerre and Tonnerre ( jure uxoris ) and also Count of Valois and Crépy (1268-1270).

John married Yolande II Countess of Nevers [11380] [MRIN: 5141], daughter of Odo (Eudes) de Bourgogne Count of Nevers [11378] and Matilda (Maud) (Mahaut) de Dampierre Countess of Nevers [11379], on 1 Jun 1265. (Yolande II Countess of Nevers [11380] was born in Dec 1247 in Nevers and died on 2 Jun 1280.)