Ah ben voilà, en cherchant mieux : http://www3.telus.net/tyee/multiples/index.html
First Sets
1400s - de Bonham (England) none surviving.
1715/16 - Unidentified (Italy) 2 boys died.
1718 - Unidentified (Portugal)
1700s - Bourru/Riffault (or Briffault) (France, circa 1717) All apparently lived to be baptized. This was recorded in a diary by Malle-Dupin Roy, in the Review of French Medicine.
Any sets born before the 60s were more than likely conceived spontaneously. Since then, I have only identified one set, stillborn at 20 weeks and born to a woman in India on April 4 2005, 4 girls and 3 boys.
Le record absolu documenté de grossesse multiple naturelle est à 12 foetus, en 1992 :
1992 - Sciortino de Allavatti (Argentina, May 1992) Mother was 24 when she lost 12 fetuses that were conceived spontaneously (without the help of fertility treatments). This is the highest number of multiples conceived spontaneously (naturally).
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Une femme qui se fout de la procréation, c'est le Saint Graal de toutes les bites du monde (BriseParpaing) - Moeagare, Gundam !