Sir Gregory Paul "Greg" Winter, CBE, FRS, FMedSci is a British biochemist, a pioneer of therapeutic monoclonal antibodies. He invented techniques to both humanise and, later, to fully humanise using phage display, antibodies for therapeutic uses. Previously, antibodies had been derived from mice, which made them difficult to use in human therapeutics because the human immune system had anti-mouse reactions to them. He is a Fellow of Trinity College, Cambridge and was installed as the Master of Trinity on 2 October 2012. He was previously Deputy Director of the Laboratory of Molecular Biology, Medical Research Council, and Head of the Division of Protein and Nucleic Acids Chemistry. 

April 14th, 1951 in (Age 73)