The OCA (Orthodox Church of America) has a hagiography page regarding them. https://www.oca.org/saints/lives/2014/11/19/100292-saints-barlaam-the-monk-and-prin

The OCA (Orthodox Church of America) has a hagiography page regarding them. https://www.oca.org/saints/lives/2014/11/19/100292-saints-barlaam-the-monk-and-prince-ioasaph-of-india https://www.oca.org/saints/lives/2014/11/19/100292-saints-ba...