Found the following hamletworks.org entries referring to line 252

View Commentary Note for 237
237 And bowe them to your gracious leaue and pardon.1.2.56

View Commentary Note for 252
252 Thou know'st tis common all that liues must die,1.2.72

View Immaterial Textual Note for 252
252 Thou know'st tis common all that liues must die,1.2.72

View Material Textual Note for 252
252 Thou know'st tis common all that liues must die,1.2.72

View Commentary Note for 280
280 For what we knowe must be, and is as common 1.2.98