Sql-server – Best way to filter result set by secondary key

I have a table with a primary key and a secondary key, something like

CREATE TABLE Entry (
     PrimaryKey int NOT NULL,
     SecondaryKey int NOT NULL,
     Data nvarchar(100) NOT NULL,
     DateCreated DATETIME NOT NULL
);

    INSERT INTO Entry VALUES(1,1,'test',getutcdate()),
(2,1,'test',getutcdate()),
(3,2,'test',getutcdate()),
(4,3,'test',getutcdate()),
(5,3,'test',getutcdate()),
(6,3,'test',getutcdate()),
(7,4,'test',getutcdate()),
(8,4,'test',getutcdate())

I want to be able to return the entries sorted by datecreated, but only 1 entry per secondary key. so with the above data, i would only get 4 rows back, the most recent entry for each secondary key.

Whats the best way to do this?

UPDATE:
question answered below, but the question i have next is 'consider the table if it has multiple data fields, what is a better query?' The original response, where everything is in the CTE:

with CTE as (
 select [PrimaryKey], SecondaryKey, [Data1],[Data2],[Data3],...DateCreated,
        rn = row_number() over (partition by SecondaryKey order by DateCreated desc)
  from dbo.Entry
  )
 select [PrimaryKey], SecondaryKey, [Data1],[Data2],[Data3],...,DateCreated
 From CTE where rn = 1 

or in another query, where the data kept in the CTE is minimized:

    with CTE as (
     select [PrimaryKey], SecondaryKey, DateCreated,
            rn = row_number() over (partition by SecondaryKey order by DateCreated desc)
      from dbo.Entry
      )
     SELECT PrimaryKey,SecondaryKey, [Data1],[Data2],[Data3],...,DateCreated 
FROM ENTRY
WHERE PrimaryKey IN( select [PrimaryKey] FROM CTE where rn = 1 )