In 1588 Thomas Morgan (age 54) was elected MP Monmouthshire.

In 1624 William Morgan (age 64) was elected MP Monmouthshire.

In 1625 William Morgan (age 65) was elected MP Monmouthshire.

In 1690 Thomas Morgan (age 25) was elected MP Monmouthshire which seat he held for life.

In 1698 John Williams 2nd Baronet (age 47) was elected MP Monmouthshire which seat he held until 1704.

In 1701 John Morgan of Tredegar (age 29) was elected MP Monmouthshire.

In 1701 William Morgan was elected MP Monmouthshire.

In 1705 Hopton Williams 3rd Baronet (age 42) was elected MP Monmouthshire which seat he held until 1708.

In 1713 Charles Kemeys 4th Baronet (age 24) was elected MP Monmouthshire.

In 1722 William Morgan (age 21) was elected MP Monmouthshire.

On 17 May 1731 Charles Noel Somerset 4th Duke Beaufort (age 21) was elected MP Monmouthshire at a by-election.

On 16 Aug 1792 Robert Salusbury 1st Baronet (age 35) was elected MP Monmouthshire which seat he held until 1796.

In 1796 Charles Gould aka Morgan 2nd Baronet (age 35) was elected MP Monmouthshire which seat he held until 1831.

In 1859 Poulett George Henry Somerset (age 36) was elected MP Monmouthshire.