Now they have made Cardiff their home, have been granted UK citizenship and with the help of medical staff and their school community are living life to the full.
Erbyn hyn, maent wedi ymgartrefu yng Nghaerdydd, wedi derbyn Dinasyddiaeth y DU a chyda chymorth staff meddygol a'u cymuned ysgol maent yn byw bywyd i'r eithaf.