Background
Swinburne was the heir of Thomas Swinburne of Gunnerton, who had died before 1332, when Robert was around five years old.
Swinburne was the heir of Thomas Swinburne of Gunnerton, who had died before 1332, when Robert was around five years old.
Swinburne was knighted by April 1356. He served as Sheriff of Essex and Hertfordshire from 1 December 1388 to 30 January 1389.
He was a Member of Parliament for Essex in January 1377, 1379, October 1382, November 1384 and January 1390.