Sir John Wadham (c.1344โ1412) was a Justice of the Common Pleas from 1389 to 1398, during the reign of King Richard II (1377โ1399), selected by the King as an assertion of his right to rule by the advice of men appointed of his own choice, and one of the many Devonians of the period described by Thomas Fuller in his Worthies of England, as seemingly "innated with a genius to study law".