Fox also had a very capable intelligence network which regularly passed timely information onto the Earl of Denbigh: predicting Prince Rupert of the Rhine's rendezvous at Bloxwich and subsequent move to Newark on 18 March 1644 and passing on the location of the King himself on 8 July. In December 1644, Fox raided Dudley a matter of hours after the departure of its royalist garrison.
That September, Fox headed the list of officers appointed to the County Committee for Worcestershire, a county still largely in royalist hands. They were authorised to meet at Hawkesley House (in Kings Norton), a new garrison established by Fox.
Throughout his occupation of Edgbaston, Fox seems to have been ill-provided with money to feed and pay his troops. He was accused of having unruly soldiers and of embezzlement, but his lack of funding from the Warwick County Committee makes the behaviour hardly surprising. He died in 1650 in great debt, and leaving his children impoverished and dependent on his brother-in-law, Humphrey Tudman.
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