Her son, Mahommed, commonly called Baha-uddin Walad, was famous for his learning and piety, but being afraid of the sultan's jealousy, he emigrated to Asia Minor in 1212.
Finally, Baha-uddin was invited to Iconium by `Ala-uddin Kaikubad (1219-1236), the sultan of Asia Minor, or, as it is commonly called in the East, Ram - whence Jalaluddin's surname (takhallus) Rumi.
After Baha-uddin's death in 1231, Jalal-uddin went to Aleppo and Damascus for a short time to study, but, dissatisfied with the exact sciences, he returned to Iconium, where he became by and by professor of four separate colleges, and devoted himself to the study of mystic theosophy.
This contains the work of Baha-ud-din (1145-1234), diplomatist, and secretary of Saladin, the general history of Ibn-Athir (1160-1233), the eulogist of the atabegs of Mosul but the unwilling admirer of Saladin, and parts of the general history of Abulfeda.
He lived, however, in great seclusion, leaving the direction of affairs almost entirely in the hands of his elder halfbrother (born 12th November 1817), Mirth Husayn `Ali, entitled Baha' u'llah (" the Splendour of God "), who thus gradually became the most conspicuous and most influential member of the sect, though in the Igan, one of the most important polemical works of the Babis, composed in 1858-1859, he still implicitly recognized the supremacy of Subh-i-Ezel.