Who wrote the episode that was set in winter 1541/february 13, 1542?
CREATE TABLE "table1_10413597_5" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "setting" text,
  "directed_by" text,
  "written_by" text,
  "u_s_viewers_million" text,
  "original_air_date" text
);
SELECT "written_by" FROM "table1_10413597_5" WHERE "setting"='Winter 1541/February 13, 1542';