 As well as being significant in relation to patent law , Whig historians have also identified it as the first infringement upon the monarch 's Royal Prerogative , and one of the first occasions in which the self @-@ confident House of Commons overruled the king , eventually leading to the English Civil War . Chris R. Kyle , writing in the Journal of Legal History , notes that this is not the case ; not only did the Statute of Monopolies only restate the previous common law , leading to no infringement upon the Royal Prerogative , James I was in the later stages of the bill supportive of its principles . James I was not opposed to the motion ; during the 1621 session of Parliament , he voided several monopolies ( included those for silver thread and inns ) , and both James and the Privy Council were active during the passage of the bill to ensure it was supported . 
