Grandisonian
/ˌɡrandɪˈsəʊnɪən/adjective
Of manner or bearing: of or resembling that of Sir Charles Grandison, the hero of Samuel Richardson's novel of that name; stately, dignified; courteous; magnanimous.
Origin
Early 19th century. From the name of Sir Charles Grandison, the eponymous hero of Samuel Richardson's novel The History of Sir Charles Grandison + -ian.