Simon Thelwall (by 1580 – 1663) was a Welsh Member of Parliament. He was the eldest son of Edward Thelwall of Plas-y-Ward, Llanynys, Denbighshire. He succeeded his father in 1610, inheriting the recently purchased Branas estate. He was a Justice of the Peace for Merioneth from 1610 to 1642 and for Denbighshire from 1613 to c.1646 and from 1648 to his death. He was appointed

High Sheriff of Denbighshire The first High Sheriff of Denbighshire was John Salusbury (died 1540s), John Salusbury, snr, appointed in 1540. The shrievalty of Denbighshire, together with that of Flintshire, continued until 1974 when it was abolished after the county and sh ...

for 1611–12. He served as a Deputy Lieutenant of Denbighshire from 1660, probably until his death. He was elected MP for

Denbighshire Denbighshire ( ; ) is a county in the north-east of Wales. It borders the Irish Sea to the north, Flintshire to the east, Wrexham to the southeast, Powys to the south, and Gwynedd and Conwy to the west. Rhyl is the largest town, and Ruthi ...

in 1614. He married twice: firstly Jane, the daughter of Maurice Wynn of Gwydir, Llanrwst, Caernarvonshire, with whom he had three sons and a daughter and secondly Dorothy, the daughter of John Wyn Owen Vaughan of Llwydiarth, Montgomeryshire and the widow of Andrew Meredith of Glantanat, Llanrhaeadr-ym-Mochnant, Denbighshire, with whom he had three more sons and three more daughters.

References

* 1663 deaths Members of the Parliament of England for Denbighshire English MPs 1614 High sheriffs of Denbighshire Year of birth uncertain Deputy lieutenants of Denbighshire {{Wales-pre1707-MP-stub