Wikipedia:Articles for deletion/List of royal guests at the coronation of Elizabeth II
It's plainly not a duplicate.  For example, the page in question has a section listing List_of_royal_guests_at_the_coronation_of_Elizabeth_II#Members_of_foreign_royal_families|Members_of_foreign_royal_families who do not appear in the procession.  As the coronation was extensively covered at the time and many books have been written about it since, the notability of the topic does not seem in question.  As the procession was just a part of the coronation ceremony, the nomination does not seem to make much sense.  It seems to be mainly a matter of , which is not a reason to delete
— user:Andrew, 21:51, 19 October 2020 (UTC)
Stance: keep
Cited policy: WP:ADHOM (Wikipedia:No personal attacks)