Question:
Where was Alexander Grothendieck educated in Nov, 1945?

Context:
 Alexander Grothendieck attended University of Montpellier from Jan, 1945 to Jan, 1948. 
 Alexander Grothendieck attended École normale supérieure  (Paris) from Jan, 1948 to Jan, 1949. 
 Alexander Grothendieck attended Nancy-Université from Jan, 1949 to Jan, 1953.

Answer:
University of Montpellier