Opera omnia, iussu impensaque Leonis XIII (vol. 12): Summa IIIa q. 60-90 1.0

Cdl. Cajetan, O.P.'s commentary (DjVu p. 128) on [III q. 68 a. 11](https://isidore.co/aquinas/summa/TP/TP068.html#TPQ68A11THEP1) ("Whether a child can be baptized while yet in its mother's womb?") says that even *in utero* infants can be martyrs like the Holy Innocents: > Si enim propter Christum infans in utero occideretur, martyr esset, non minus quam Innocentes. cf. [Can an unborn infant be martyred?](https://isidore.co/forum/index.php?topic=147.msg378#msg378)