Found the following hamletworks.org entries referring to line 531
View Commentary Note for 531
531
Of entrance to a quarrell, but being in,
1.3.66
View Immaterial Textual Note for 531
531
Of entrance to a quarrell, but being in,
1.3.66
View Material Textual Note for 531
531
Of entrance to a quarrell, but being in,
1.3.66
View Commentary Note for 532
532
Bear't that th'opposed may beware of thee,
1.3.67