document — Palmieri, On Christian Marriage
From the Epistle of the Same Alexander II, Responding to the Questions of a Certain Bishop, A.D. 1061-73
¶1594.
When one has died, affinity is not destroyed in the survivor, nor can another conjugal copula dissolve the affinity of the former copula. But neither does it please that the offspring of another conjunction pass over to the consortship of that affinity itself, namely the former.
¶1595.
Namely, sons or daughters from a second marriage cannot be coupled to the blood-relatives of the former spouse; for between them the second kind of affinity intervenes. Cf. Decree L of the fourth Lateran Council, below.