About 1559 William Rosewell, the Solicitor-General, married Elizabeth, daughter of Matthew Dale, a wealthy haberdasher of Bristol and London.
[8] In 1556 Sir Thomas Smith, of Ankerwycke, in the county of Buckinghamshire (now Berkshire), sold the Manor and advowson of Yarlington, Somerset to William Rosewell, of Loxton, and William Rosewell, his son and heir of the Middle Temple, London for £1,000.
A lease written in 1562 shows that William Rosewell, Solicitor-General, lived at the Yarlington Manor.
After being in the hands of the Rosewells for 36 years the Manor and advowson of Yarlington was sold to Sir Henry Berkeley, of Bruton in 1592 for £2,400.
A legacy of £5 he leaves 'to the Poore Howsholders within the parrishes of Whittington Colledg Sanicte Thomas Apples [Apostle's] and elsewhere within the Cytie of London to be distributed amonges them in Allmes as shalbe thought good by the Deane of Powles withe the assente of som of my seid trustie frendes.'
The 'right Honerable Sir William Cecill (William Cecil) Knight the Qluenes majesties principall Secretarie and Gilbert Gerrarde (Gilbert Gerard) esquier her highnes Attorney generall' were requested to act as overseers.
According to this document, his children were to be 'well godlie and vertuoslie brought opp and maineteyned according to their degrees in lerninge nurture and vertue and that my saide sonnes at their apte yeres of discretion shalbe putt to the study of the Lawes so long tyme and in suche sorte as shall seeme metest to the discretion of my said trusty friendes.'