Winchilsea and about 150 other contributors withdrew their support of King's College London in response to Wellington's support of Catholic emancipation. In a letter to Wellington he accused the Duke to have in mind "insidious designs for the infringement of our liberty and the introduction of Popery into every department of the State". The letter provoked a furious exchange of correspondence and Wellington accused Winchilsea of imputing him with "disgraceful and criminal motives" in setting up King's College London. When Winchilsea refused to retract the remarks, Wellington – by his own admission, "no advocate of duelling" and a virgin duellist – demanded satisfaction in a contest of arms: "I now call upon your lordship to give me that satisfaction for your conduct which a gentleman has a right to require, and which a gentleman never refuses to give."