|לב וַיְהִי-נֹחַ, בֶּן-חֲמֵשׁ מֵאוֹת שָׁנָה; וַיּוֹלֶד נֹחַ, אֶת-שֵׁם אֶת-חָם וְאֶת-יָפֶת.||32 And Noah was five hundred years old; and Noah begot Shem, Ham, and Japheth.|
|יט שְׁלֹשָׁה אֵלֶּה, בְּנֵי-נֹחַ; וּמֵאֵלֶּה, נָפְצָה כָל-הָאָרֶץ.||19 These three were the sons of Noah, and of these was the whole earth overspread.|
|כב וַיַּרְא, חָם אֲבִי כְנַעַן, אֵת, עֶרְוַת אָבִיו; וַיַּגֵּד לִשְׁנֵי-אֶחָיו, בַּחוּץ.||22 And Ham, the father of Canaan, saw the nakedness of his father, and told his two brethren without.|
|saw his father’s nakedness: Some say that he castrated him, and some say that he sodomized him. — [from Sanh. 70a]||וירא את ערות אביו: יש אומרים סרסו ויש אומרים רבעו:|
In the Chronicles of Yerachmeel, we read what is pictured to the right. He cites the Greek historian Strabon, that there Noach had a fourth son. This when Noach was 100 years old, rather than the 500 years old at which he had Shem, Cham and Yefet. In his form and image makes one think of the parallel pasuk by Adam, when he had an additional son, Shet. And his father gave him gifts, just as Avraham gave his children from other wives gifts before sending them off, because they would not share the same destiny as the Jewish people. These
"gifts" were apparently astrology. If Nimrod, son of Shem, consulted with him, then he must have survived the flood, though he is not mentioned. So I don't know how this all works out, within this theory.Indeed, at the end of all this, the author states he considers it just a legend, and does not feel the need to reconcile it with another legend which puts Nimrod and Avraham as living at the same time.
There exist various traditions in extrabiblical sources claiming that Noah had children other than Shem, Ham, and Japheth, born variously before, during, or after the Deluge.
According to the Quran (Hud v. 42-43), Noah had another unnamed son who refused to come aboard the Ark, instead preferring to climb a mountain, where he drowned. Some later Islamic commentators give his name as either Yam or Kan'an.
Some 9th century manuscripts of the Anglo-Saxon Chronicles assert that Sceafa was the fourth son of Noah, born aboard the Ark, from whom the House of Wessex traced their ancestry; in William of Malmesbury's version of this genealogy (c. 1120), Sceaf is instead made a descendant of Strephius, the fourth son born aboard the Ark.
An early Arabic work known as Kitab al-Magall or the Book of Rolls (part of Clementine literature) mentions Bouniter, the fourth son of Noah, born after the flood, who allegedly invented astronomy and instructed Nimrod. Variants of this story with often similar names for Noah's fourth son are also found in the ca. 5th century Ge'ez work Conflict of Adam and Eve with Satan (Barvin), the ca. 6th century Syriac book Cave of Treasures (Yonton), the 7th century Apocalypse of Pseudo-Methodius (Ionitus), the Syriac Book of the Bee 1221 (Yônatôn), the HebrewChronicles of Jerahmeel, ca. 12th-14th cent. (Jonithes), and throughout Armenian apocryphal literature, where he is usually referred to asManiton; as well as in works by Petrus Comestor c. 1160 (Jonithus), Godfrey of Viterbo 1185 (Ihonitus), Michael the Syrian 1196 (Maniton),Abu Salih the Armenian c. 1208 (Abu Naiţur); Jacob van Maerlant c. 1270 (Jonitus), Abraham Zacuto 1504 (Yoniko) and Jehiel ben Solomon Heilprin c. 1697 (Yuniku).
Martin of Opava (c. 1250), later versions of the Mirabilia Urbis Romae, and the Chronicon Bohemorum of Giovanni di Marignola (1355) make Janus (i.e., the Roman deity) the fourth son of Noah, who moved to Italy, invented astrology, and instructed Nimrod.
According to the monk Annio da Viterbo (1498), the Hellenistic Babylonian writer Berossus had mentioned 30 children born to Noah after the Deluge, including sons named Tuiscon, Prometheus, Iapetus, Macrus, "16 titans", Cranus, Granaus, Oceanus, and Tipheus. Also mentioned are daughters of Noah named Araxa "the Great", Regina, Pandora, Crana, and Thetis. However, Annio's manuscript is widely regarded today as having been a forgery.