sentences:  Vaughan entered the English House of Commons in 1624, sitting for Carmarthenshire, the constituency his father had previously represented, until 1629.On the coronation of King Charles I of England in 1626, he was made a Knight of the Order of the Bath (KB).Vaughan was appointed Custos Rotulorum of Carmarthenshire in 1630, Custos Rotulorum of Pembrokeshire in 1643 and Custos Rotulorum of Cardiganshire a year later, which offices he held until the English Interregnum in 1646.