Note HS — PREFACE TO THE EDITION OF 1814 (continued 3)
Reading edition
"The dark sorrows of the line of Thebes" descended for three generations; from Lais and Iocaste to Œdipus; thence to Eteocles, Polynices, Antigone, and Ismene.
Compare Milton's lines in Il Penseroso, ll. 97-100—
Sometime let gorgeous Tragedy In sceptred pall come sweeping by, Presenting Thebes, or Pelops' line, ED. Or the tale of Troy divine.