CREATE TABLE table_16923 ("Governorate" CLOB, "Name in Russian" CLOB, "Name in Polish" CLOB, "Seat" CLOB, "Area ,  in thousands of km 2" FLOAT, "Population ,  in thousands ,  (  1905  ) " FLOAT)

What seat does hold?
SELECT "Seat" FROM table_16923 WHERE "Name in Russian" = 'Плоцкая губерния'
SELECT "Seat" FROM "table_16923" WHERE "Name in Russian" = 'Плоцкая губерния'