[1] He became a member of the Inner Temple 11 October 1552, and in the autumn of 1569 and Lent of 1577 was reader, and in 1579 treasurer.
In 1571 he became counsel to the dean and chapter of Norwich, and in 1573 to the town of Great Yarmouth.
for Castle Rising in 1572, but replaced by Sir William Drury in 1581 when he reported sick.
On 20 February 1585 he was a member of the special commission for the county of Middlesex, before which Dr William Parry was tried and convicted for high treason.
The parishioners, wishing to preserve the church, petitioned the crown to be allowed to buy it at a valuation, and paid the money.
Flowerdew, however, stripped it of its lead and carried off a quantity of freestone, whereupon the exasperated parishioners dismantled it.