family quarrels
... that family quarrels led to a riot at Covent Garden in 1802?
... that <b id="mwA_0"><a href="./Family_Quarrels" id="mwA_4" rel="mw:WikiLink" title="Family Quarrels">family quarrels</a></b> led to a riot at <a href="./Royal_Opera_House#The_first_theatre" id="mwA_8" rel="mw:WikiLink" title="Royal Opera House">Covent Garden</a> in 1802?