In Dec 1601 John Salusbury (age 34) was elected MP Denbighshire.

In 1604 Peter Mutton of Llanerch (age 39) was elected MP Denbighshire.

In 1679 John Salusbury 4th Baronet (age 42) was elected MP Denbighshire.

In 1681 John Salusbury 4th Baronet (age 44) was elected MP Denbighshire.

In 1685 Richard Myddelton 3rd Baronet (age 29) was elected MP Denbighshire unopposed at which time he was restored as Custos Rotulorum.

In 1685 Richard Myddelton 3rd Baronet (age 29) was elected MP Denbighshire unopposed.

In 1690 Richard Myddelton 3rd Baronet (age 34) was elected MP Denbighshire.

In 1695 Richard Myddelton 3rd Baronet (age 39) was elected MP Denbighshire which seat he held until his death in 1716 being re-elected in 1698, Feb 1701, Dec 1701, 1702, 1705, 1708, 1710, 1713 and 1715.

In 1835 William Bagot 3rd Baron Bagot (age 23) was elected MP Denbighshire which he held until 1852.

In 1841 Watkin Williams-Wynn 6th Baronet (age 20) was elected MP Denbighshire. He held the seat for forty-fours years until his death in 1885.

In May 1885 Herbert Lloyd Watkin Williams-Wynn 7th Baronet (age 24) was elected MP Denbighshire which seat he held until Nov 1885 when the seat was abolished. He lost the subsequent election for the new East Denbighshire constituency, and tried unsuccessfully to gain the seat in the following two elections in 1886 (when he lost by only 0.4 per cent) and 1892.