The Brownes acquired Betchworth Castle, near Dorking in Surrey, in the fifteenth century and first represented Surrey in 1478.
Browne was among the Surrey gentry who signed a petition in favour of the Wey navigation bill promoted by the Guildford corporation in the 1621 Parliament.
Browne was elected for the senior seat in 1628, apparently against the opposition of Sir George More* who had represented the county in six previous parliaments but was not a candidate on this occasion. On 16 Feb. Browne wrote to More accusing him of obstructing his candidacy from ‘an innate and inveterate malice unto my house and name’; however there is no evidence of a contest.
In the early 1630s Browne paid £25 for his knighthood composition.
