Entity Framework - select group by, select max date

I have a NoteBrief

public int Id { get; set; } 
public string Title { get; set; } 
public DateTime Created { get; set; }
public int ParentNoteId { get; set; }

Data looks something like

1 Title1 03/31/1987 1
2 Title1 03/31/1988 1
3 Title3 01/01/2000 3
4 Title4 01/01/2001 4
5 Title4 01/01/2005 4

I want to do:

SELECT t1.*
FROM Notes AS t1 LEFT JOIN Notes AS t2
ON (t1.ParentNoteId = t2.ParentNoteId AND t1.Created < t2.Created)
WHERE t2.Created IS NULL;

Right now i have:

 public IQueryable<NoteBrief> GetNotes()
    {

        return _ctx.Notes.Select(r => new NoteBrief
        {
            Id = r.Id,
            Title = r.Title,
            Created = r.Created,
            ParentNoteId = r.ParentNoteId,
        });

    }

I'm happy with this, but really don't need the older revisions of a parentNoteId, just need the one that was created last so i can link to it.

I've read many examples, some of which use FirstOrDefault and some that use max. Everytime i try to implement an example though, it doesn't work for me.