Peter I de Dreux Duke of Brittany [11685] ²⁴

   Other names for Peter were Peter of Dreux, Pierre de Dreux, Pierre I de Dreux Mauclerc of Brittainy, Count of Brittany, Pierre Mauclerc and Pierre Mauclerc (literally Bad-clerk[1]).

  General Notes:

regent 1221-1237.
See Europäisch Stammtafeln Band II tafel 29.
http://www.hull.ac.uk/php/cssbct/cgi-bin/gedlkup.php/n=royal?royal07553
http://www.hull.ac.uk/php/cssbct/cgi-bin/gedlkup.php/n=royal?royal21709

http://en.wikipedia.org/wiki/Peter_I%2C_Duke_of_Brittany

Has ancestry chart in Wikipedia

Pierre Mauclerc also known as Peter of Dreux or Pierre de Dreux


He was initially destined for a career in the clergy, which he later renounced, earning him the nickname Mauclerc (French: mauvais clerc, bad-cleric). He broke the convention of ecclesiastical heraldry by placing on the canton of his paternal arms the ermine, then reserved for the clergy.

  Noted events in his life were:

• Acceded: Duke of Brittany, 1213. was Duke of Brittany jure uxoris from 1213 to 1221

• Regent: Duke of Brittany, 1221. Regent of the duchy (for his minor son) from 1221 to 1237

• Acceded: Earl of Richmond, 1219. Earl of Richmond from 1219 to 1235

Peter married Alice ( Alix) of Brittany de Thouars Duchess of Brittany [11973] [MRIN: 5317], daughter of Guy de Thouars Viscount [11974] and Constance of Brittany Duchess of Brittany [3913], in 1213. (Alice ( Alix) of Brittany de Thouars Duchess of Brittany [11973] was born before 5 Sep 1201 in Brittany, died on 21 Oct 1221 and was buried on 24 Nov 1225 in Villeneuve Abbey, Nantes, Brittany.)