Sorting foreign_key objects?

Question

Django

I'm trying to sort chats by the latest message (last message at the top of the list).
Model

class Chat(models.Model):
    creater = models.ForeignKey(User, on_delete=models.CASCADE)
    members = models.ManyToManyField(User, verbose_name="Участник", related_name='members', default=User)


class Message(models.Model):
    author = models.ForeignKey(User, verbose_name="Отправитель", on_delete=models.CASCADE)
    recipient = models.ForeignKey(Chat, related_name='received_messages', verbose_name="Получатель", on_delete=models.CASCADE)

view

body_chat = body_chat.order_by('-received_messages__pk')

    for chat in body_chat:
        chat_id = get_object_or_404(Chat, id=chat.id)
        message = Message.objects.order_by('-pk').filter(recipient=chat_id)[0:1]
        chat.message = message

Sample

{% for chat in body_chat %}
        <h7>Вы: {{ chat.message.0.content }}</h7>
{% endfor %}

With this sorting, for each message sent, the template creates a new chat. But if you do sorting, for example, like this: body_chat = Chat.objects.filter(members=request.user).order_by('-pk') then it doesn't create anything extra, but sorting goes accordingly by pk.
How can be eliminated?