'As Jesus is called the King of sorrows and the King of martyrs, because He suffered during, His life more than all other martyrs; so also is Mary with reason called the Queen of martyrs, having merited this title by suffering the most cruel martyrdom possible after that of her Son. Hence, with reason, was she called by Richard of Saint Lawrence, "the Martyr of martyrs"; and of her can the words of Isaias with all truth be said, "He will crown thee with a crown of tribulation;" that is to say, that that suffering itself, which exceeded the suffering of all the other martyrs united, was the crown by which she was shown to be the Queen of martyrs. That Mary was a true martyr cannot be doubted, as Denis the Carthusian, Pelbart, Catharinus, and others prove; for it is an undoubted opinion that suffering sufficient to cause death is martyrdom, even though death does not ensue from it. Saint John the Evangelist is revered as a martyr, though he did not die in the caldron of boiling oil, but he came out more vigorous than he went in. Saint Thomas says, "that to have the glory of martyrdom, it is sufficient to exercise obedience in its highest degree, that is to say, to be obedient unto death." "Mary was a martyr," says Saint Bernard, "not by the sword of the executioner, but by bitter sorrow of heart." If her body was not wounded by the hand of the executioner, her blessed heart was transfixed by a sword of grief at the passion of her Son; grief which was sufficient to have caused her death, not once, but a thousand times. From this we shall see that Mary was not only a real martyr, but that her martyrdom surpassed all others; for it was longer than that of all others, and her whole life may be said to have been a prolonged death.
"The passion of Jesus," as Saint Bernard says, "commenced with His birth". So also did Mary, in all things like unto her Son, endure her martyrdom throughout her life. Amongst other significations of the name of Mary, as Blessed Albert the Great asserts, is that of "a bitter sea." Hence to her is applicable the text of Jeremias: "great as the sea is thy destruction." For as the sea is all bitter and salt, so also was the life of Mary always full of bitterness at the sight of the passion of the Redeemer, which was ever present to her mind. "There can be no doubt, that, enlightened by the Holy Ghost in a far higher degree than all the prophets, she, far better than they, understood the predictions recorded by them in the sacred Scriptures concerning the Messias." This is precisely what the angel revealed to Saint Bridget; and he also added, "that the Blessed Virgin, even before she became His Mother, knowing how much the Incarnate Word was to suffer for the salvation of men, and compassionating this innocent Saviour, who was to be so cruelly put to death for crimes not His own, even then began her great martyrdom."'
St. Alphonsus Maria de Liguori