William Qualtrough of Kentraugh was one of four men exempted from the general pardon alongside William Christian (Illiam Dhone) following the 1651 Manx rebellion. Unlike Christian, he submitted to the lord's mercy and was pardoned on 4 February 1663, on condition of bonds and good behaviour. Within two years he was elevated to Deemster and reinvested in his estate by the 8th Earl of Derby's own order.