Note 23 — Chapter XXXI
Reading edition
Pues el rosario tomais, No dudo que le receis Por mí, que muerto me habeis, O por vos, que me matais. Obras, 1778, Tom. I. p. 337.
Camoens had the same idea in some Portuguese redondillas, (Rimas, 1598, f. 159,) so that I suspect both of them took it from some old popular epigram.