He was royalist in his sympathies, and he obtained a commission from King Charles I of England to raise troops from Bristol, but in December, before he could accomplish the task, the city was occupied by a parliamentary force under the command of Colonel Essex.
[3] Fiennes heard of the plot, and on 7 March, before they could execute the plan, Yeamans and his principal confederates were arrested in his house on Wine Street.
[3] Charles made great efforts to save him, and Lord Forth threatened to execute a similar number of parliamentary prisoners in his hands.
The threat proved useless, as Fiennes also held other notable Royalist prisoners recently captured by Sir William Waller on his raid into Herefordshire, so to forestall a blood bath King Charles ordered that no retaliatory executions should take place.
[6] The only child of the Royalist whose relationship to him is established is his daughter Anne, who married [Thomas Curtis], the quaker of Reading, and interceded for George Fox's release in 1660.