Background
Barrington was the eldest son of Sir Thomas Barrington of Barrington Hall, Hatfield Broadoak, Essex (died 1586) and as her second husband Winifred Pole (b aft 1521 or in 1525), youngest daughter of the 1st Baron Montagu.
Barrington was the eldest son of Sir Thomas Barrington of Barrington Hall, Hatfield Broadoak, Essex (died 1586) and as her second husband Winifred Pole (b aft 1521 or in 1525), youngest daughter of the 1st Baron Montagu.
He was educated at Cambridge University.
He was knighted on 7 May 1603 on the accession of King James I of England at Theobalds House, Hertfordshire, In 1604 he was re-elected Member of Parliament for Essex. He was called to the bar by Gray"s Inn on 19 March 1605 or 1606. On 29 June 1611, he was made a baronet, of Barrington Hall, in Hatfield Broadoak, County Essex, in the newly erected Baronetage of England.
In 1621 Barrington was elected Member of Parliament for Essex again.
He was re-elected in 1624, 1625, 1626 and 1628 and sat until his death in 1628.
Useless Parliament; Happy Parliament. 2nd Parliament of King Charles I]
In 1601, Barrington was elected Member of Parliament for Essex.