Emilia Clarke's performance in this episode got her a nomination for outstanding supporting actress in a drama series in the 65th primetime Emmy Awards. Her first nomination for the show.
The first time that a wide shot and the interior of the Great Sept of Baelor are shown. While the sept is the setting of the climax of Baelor (2011), only the bottom half of the structure was shown. The sept was redesigned as a dome, after initially appearing in a wide shot in Winter Is Coming (2011), resembling a medieval cathedral with seven huge spokes (which can still be seen in the opening credits sequence whenever King's Landing is shown). The novels are not very explicit in their descriptions of the Seven, so for the show, they were designed as artistic nudes in Greco-Roman or Renaissance style (e.g. the Father resembles Zeus).
The episode title "And now his watch is ended" is a phrase commonly used at the end of the eulogy in a funeral for a member of the Night's Watch. It refers to the funeral of Night's Watch member Bannen, but also to the death of Lord Commander Mormont at the end.
Joffrey mentions Rhaenyra who was executed by her half-brother, king Aegon II, in a civil war called the Dance of Dragons, which is the focus of the spin-off series House of the Dragon (2022).
Beric Dondarrion had briefly appeared in A Golden Crown (2011) where Ned sent him to bring justice to the Mountain for raiding the Riverlands. This led to the battle of Mummer's Ford, as mentioned by Anguy (the Mad Huntsman in the novel), one of the early skirmishes in the War of the Five Kings. Dondarrion was played by an extra, as the character wouldn't reappear until the third season. He has been re-cast with Richard Dormer for the remainder of the series.