I think Merida might have a backstory with Robin. They’re both expert archers. Episode 5×21 being a character centric for Robin makes sense if he does indeed die in it. The episode title “Last Rites” being about death also makes it seem like the funeral will occur in this episode.
[adrotate group="5"]
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy