[etrevino]

In that era riots were often named for locations or the thing/person/event that instigated them. So, rather than it being a statement of who was rioting, it was an assertion for the reason for the riot. That's why we have the Sacheverell (sp?) and Gordon Riots: the first was sparked by the prosecution of an important prelate, the second was instigated by an English nobleman who opposed the restoration of rights to Catholic Englishmen.