Man-woman relationships 57 Operas 33 History 13 Triangles (Interpersonal relations) 12 Love 9 Revenge 9 Jealousy 8 more ... Betrayal 7 Desdemona (Fictitious character) 7 Iago (Fictitious character) 7 Interracial marriage 7 Married people 7 Truthfulness and falsehood 7 Murder 6 Courtesans 5 Painters 5 Regicide 5 Singers 5 Terminally ill 5 Kings and rulers 4 Marriage 4 Poets 4 Soldiers 4 Songs (High voice) with orchestra 4 Sopranos (Singers) 4 Bohemianism 3 Civil war 3 Dating services 3 Figaro (Fictitious character) 3 History and criticism 3 less ...