Hubert Miles Gladwyn Jebb , 1st Baron Gladwyn , GCMG , GCVO , CB , known as Gladwyn Jebb ( 25 April 1900 - 24 October 1996 ) , was a prominent British civil servant , diplomat and politician as well as the Acting Secretary-General of the United Nations for a little over three months .
Hubert Miles Gladwyn Jebb , 1st Baron Gladwyn , GCMG , GCVO , CB , known as Gladwyn Jebb ( 25 April 1900 ( 1900-04-25 ) - 24 October 1996 ) , was a prominent British civil servant , diplomat and politician as well as the first Acting Secretary-General of the United Nations .