On 28 Apr 1537 Robert Cheeseman (age 52) was elected MP Middlesex which seat he held until 24 Jul 1540.

In 1545 William Paget 1st Baron Paget Beaudasert (age 39) was elected MP Middlesex.

In 1572 Owen Hopton (age 53) was elected MP Middlesex.

In 1584 Owen Hopton (age 65) was elected MP Middlesex.

In 1614 Thomas Lake (age 46) was elected MP Middlesex.

In 1621 Gilbert Gerard 1st Baronet (age 33) was elected MP Middlesex.

In 1624 Gilbert Gerard 1st Baronet (age 36) was elected MP Middlesex and MP Isle of Wight. He sat for MP Middlesex.

In 1625 Gilbert Gerard 1st Baronet (age 37) was elected MP Middlesex.

In 1626 Gilbert Gerard 1st Baronet (age 38) was elected MP Middlesex.

In Apr 1640 Gilbert Gerard 1st Baronet (age 52) was elected MP Middlesex.

In Nov 1640 Gilbert Gerard 1st Baronet (age 53) was elected MP Middlesex.

In 1654 James Harington 3rd Baronet (age 46) was elected MP Middlesex which seat he held until 1655.

In 1659 Francis Gerard 2nd Baronet (age 41) was elected MP Middlesex.

In 1780 George Byng (age 45) was elected MP Middlesex.

In 1790 George Byng (age 25) was elected MP Middlesex.

In 1802 Francis Burdett 5th Baronet (age 31) was elected MP Middlesex; the return was declared void in 1804 and he lost the ensuing by-election. In 1805 this return was amended in his favor, but as this decision was again quickly reversed, Burdett, who had spent an immense sum of money over the affair, declared he would not stand for parliament again.

In 1857 George Byng 3rd Earl Strafford (age 26) was elected MP Middlesex.