title: C. Brian Haselgrove
text: # C. Brian Haselgrove
  
  Colin Brian Haselgrove (26 September 1926 – 27 May 1964) was an English mathematician who is best known for his disproof of the Pólya conjecture in 1958.
  
  Haselgrove was educated at Blundell's School and from there won a scholarship to King's College, Cambridge. He obtained his Ph.D., which was supervised by Albert Ingham, from Cambridge in 1956.
  
  ## Personal life
  
  Haselgrove was married to fellow mathematician Jenifer Haselgrove. After having suffered minor epileptic fits for several years caused by a brain tumor, he died in Manchester in May 1964.
  
  