Found the following hamletworks.org entries referring to line 274

View Immaterial Textual Note for 271
271 But you must knowe your father lost a father,1.2.89

View Commentary Note for 274
274 To doe obsequious sorrowe, but to perseuer1.2.92

View Immaterial Textual Note for 274
274 To doe obsequious sorrowe, but to perseuer1.2.92

View Material Textual Note for 274
274 To doe obsequious sorrowe, but to perseuer1.2.92