Thiri Tilawka Mahabhata Thu Ratana Devi (; ), commonly known as the Princess of Myedu () was a royal princess of Ava during the Konbaung dynasty of Burma. She was the youngest daughter of King Bodawpaya and Chief Queen Me Lun Me (áÂÂáÂÂáºáÂÂá½áÂÂáºá¸áÂÂáÂÂáº). She was granted the appanages of Myedu.
She married her half brother, Prince of Pyay. Her given name was Ma Ohnn, and her regal title was .
King Bodawpaya and Chief Queen had three daughters:
Her husband, Prince of Pyay, was the youngest among two sons of King Bodawpaya and Shin Lunthu (áÂÂá¾áÂÂáºáÂÂá½áÂÂáºá¸áÂÂá°), Queen of the Northern Palace. His eldest brother was Crown Prince of Shwedaung (á¡áÂÂáÂÂáºáÂÂá¾á±á·á á¶ áÂÂá½á¾á±áÂÂá±á‡ÂÂáºáÂÂáÂÂáºá¸áÂÂᇸ). Prince of Pyay and Princess of Myaydoo had a daughter called Hsinbyume who was the first consort of the crown-prince-to-be Prince of Sagaing, who later became King Bagyidaw.