As his only surviving work, it describes in detail the past lives of the Welsh princes from Cadwaladr to Llywelyn ap Gruffudd with his source he termed'the Welsh Cronicle' implicating Caradoc of Llancarfan.
It describes in detail the past lives of the Welsh princes from Cadwaladr to Llywelyn ap Gruffudd with his source. This is as his only surviving work. This source is implicating Caradoc of Llancarfan. He termed'the Welsh Cronicle' his source.