CREATE TABLE table_15484 ("Name" CLOB, "Tenure" CLOB, "Courtesy title" CLOB, "Court Rank" CLOB, "revenues" CLOB)

What is the courtesy title of the person whose tenure goes from 1766 1794?
SELECT "Courtesy title" FROM table_15484 WHERE "Tenure" = '1766–1794'
SELECT "Courtesy title" FROM "table_15484" WHERE "Tenure" = '1766–1794'