CREATE TABLE table_37215 ("Name" TEXT, "Birth" TEXT, "Marriage" TEXT, "Became Duchess" TEXT, "Ceased to be Duchess" TEXT, "Death" TEXT, "Spouse" TEXT)

Which Spouse has a Birth of 30 may 1653?
SELECT "Spouse" FROM table_37215 WHERE "Birth" = '30 may 1653'
SELECT "Spouse" FROM "table_37215" WHERE "Birth" = '30 may 1653'