Robertonian
(ˌrɒbəˈtəʊnɪən)
[f. as prec. + -onian as in Caledonian, Patagonian, etc.]
A follower of Robert the Strong (see Robertian a.).
| 1936 H. A. L. Fisher Hist. Europe i. xvii. 208 Robert the Strong, Count of Paris, fought for ten years against the Northmen... The Robertonians were as distinguished for caution as for courage. |