"Bat" translates murcielago, which is the usual
Spanish word for the winged mammal that lives in caves
----------------------
from pages 96-97,
http://www.escholarship.org/editions/view?docId=ft396nb1w0&chunk.id=d0e5389&toc.depth=1&toc.id=d0e164&brand=ucpress;query=murcielago#1
(I don't know if the link's good or not, or if you'll see
this)
Christian eschatological doctrines or beliefs concerning
"the last days" enjoyed a particularly flourishing
tradition in the Iberian world: rooted in the appropriate
biblical texts and producing Spanish and Portuguese variants,
its last important manifestation occurred as late as 1896 in
the famous Brazilian rebellion, inspired by Sebastianism, of
Antonio the Councilor.[13] But its most outstanding feature
was that it was based on a mutation of the apocalyptic legend
of The Last Roman Emperor . The source of this West European
legend was the Greek apocalypse of Pseudo-Methodius, written
in the seventh or early eighth century, although the Greek
text was itself a translation of a seventh-century Syriac
original, also attributed to a Methodius, but composed in
Mesopotamia. This apocalyptic legend was translated into Latin
in the late seventh or eighth century in Merovingian Gaul,
thus introducing into the West the belief that at the end of
days a king of the Greeks or Romans would defeat the Muslims,
conquer Jerusalem, and renounce his empire directly to God at
the hill of the skull, Golgotha. Subsequently a tenth-century
monk, Adso, rewrote the legend to fit an eschatological French
king, and between the thirteenth and fifteenth centuries
Germanic variations developed, so that by the fifteenth
century it was believed that Emperor Frederick II, who died in
Apulia in 1250, was still alive and hidden on Mount
Kyffhauser, awaiting to return and fulfil the millennial
prophesy.[14] But, in addition to the last World Emperor, the
figure of the Angelic Pope emerged toward the end of the
thirteenth century and came to reflect the aspirations of the
spiritual Franciscans. For the Spirituals Rome was identified
with the carnal Church, to be rejected by Christ at the end of
the sixth age. Rome was Babylon meretrix et impudica; illa
Babylon meretrix magna . At the end of days, therefore, the
World Emperor would be helped by the Angelic Pope.[15]
In Spain the legend of The Last World Emperor, suitably
influenced by Joachimite ideas and prophesies attributed to
St. Isidore of Seville, produced a messianic king and world
emperor, known variously as the Encubierto (the Hidden One),
the Murciélago (the Bat), and the New David.[16] Moreover, as
was amply demonstrated in the highly influential apocalyptic
treatise of the Franciscan Fray Alemán, the eschatological
"events" underwent a marked process of
Hispanicization, for in Alemán's treatise the Antichrist
appears in Seville, the messianic armies
disembark "near Antioch, which is the port of
Cádiz," and a titanic battle ensues in Seville near the
present-day cathedral. Victorious, the messianic forces
proceed to take Granada; thereafter Jerusalem and the rest of
the world are conquered, and of course an Angelic Pope is
installed in Rome.[17]
Although the eschatological tradition was a long-standing one,
it was only from about 1470 onward that reality began to match
messianic expectations; as Milhou has demonstrated, an
avalanche of prophetic texts, commentaries, and ballads, and
even a letter of revelation which the Marquis of Cádiz, don
Rodrigo Ponce de León, circulated to the great nobles of
Castile in 1486, identified Ferdinand the Catholic as the
Encubierto or Bat who would conquer the Holy House of
Jerusalem and the whole world.[18] Nor was Ferdinand averse to
believing all this. Pietro Martire thought in 1510 that
Ferdinand was obsessed with the conquest of Africa, and in
February of that year Ferdinand himself wrote in one of his
letters that "the conquest of Jerusalem belongs to Us and
We have the title of that kingdom."[19] Is it a
coincidence that Sor María de Santo Domingo's rise to fame
dated from 1509, or that from 1510 onward rey de Jerusalén
came to be included by Ferdinand among his other royal
titles?[20] In any case the dying Ferdinand would certainly
have understood all the implications of the divine message
which Sor María had sent him.