Symeon of Durham
| Author(s) | Title | Reference | |
|---|---|---|---|
| D.J.A. MATTHEW | David Rollason, Symeon of Durham, Historian of Durham and the North, Studies in North-Eastern History 1 | 69/1, p. 172 | |
| V.H. Galbraith | The Genuine Asser, by Dorothy Whitelock | 38/2, p. 178 |