HIH Prince Ali Reza, second son of the late Shahanshah Mohammed Reza of Iran, committed suicide on 4th January 2011 (see the RadicalRoyalist's obituary).
Darius Kadivar, an exiled Iranian Monarchist blogger, reported two days ago:
It has been officially announced that the late Prince Ali Reza has a daughter named Iryana Leila born on July 26th, 2011 to his relationship with fiancee Raha Didevar.
Prince Ali Reza was formally engaged in 2001 to Sarah Tabatabai, but it seems that the relationship ended some time afterwards.
On the website of HIM Shah Reza II this message was published:
On behalf of my family, I wish to inform our compatriots & friends of the birth of Iryana Leila, daughter of our beloved Alireza, on July 26th, 2011.
We know you will join us, out of respect and love for our dearest Alireza, and allow the baby and her mother Ms. Raha Didevar to recover & thrive in peace and privacy.
We continue to be touched and grateful for your love and heartfelt sympathies that have been extended to us, unconditionally, since our loss.