She married (I forget the pedigree)
With an Hidalgo, who transmitted down
His blood less noble than such blood should be;
At such alliances his sires would frown,
In that point so precise in each degree
That they bred in and in, as might be shown,
Marrying their cousins—nay, their aunts, and nieces,
Which always spoils the breed, if it increases.
This heathenish cross restored the breed again,
Ruin'd its blood, but much improved its flesh