Nicola Hatefi (1801863) has retired as a player and is now just the president of Royal Leopold (8150910) which he has held since 2020
https://www.sudinfo.be/id658092/article/2023-04-28/d3a-acff-la-derniere-danse-de-nicola-hatefi-au-leopold-uccle
https://www.dhnet.be/sports/sport-regional/bruxelles/2020/06/10/nicola-hatefi-est-le-nouveau-president-du-leopold-cest-un-honneur-WEIFXFMCP5GWLDOK4UEWBW7EAM/
SCO Roubaix 59 (85043692) has merged into Racing Club Roubaix
William Loko (10427) is the Chairman
https://www.facebook.com/scoroubaix59/
https://www.lavoixdunord.fr/1306734/article/2023-03-24/foot-une-fusion-roubaix-les-clubs-se-rapprochent-enfin
https://www.fff.fr/competition/club/542145-racing-club-roubaix/information.html
As far as I can tell Raphael Lea'i (30052374) should still be contracted to Velez Mostar (1300163)
https://www.facebook.com/photo.php?fbid=791224133013539&set=pb.100063778784647.-2207520000&type=3
https://fkvelez.ba/prvi-tim/
The 1956/57 has the wrong team name
RFC 1924 St-Vith (182) should be Verviers whose name has changed between FM22 and FM23 for some reason
While the 1969/70 runners up should be Daring Club (100488) whose name in-game is Wal Ass Sauveniere which I could not find any info on (100488) and who also should be extinct in-game
https://en.wikipedia.org/wiki/List_of_Belgian_Cup_finals
https://en.wikipedia.org/wiki/R.C.S._Verviétois
https://en.wikipedia.org/wiki/R._Daring_Club_Molenbeek
Royal Leopold's (8150910) first team play at the Neerstalle Stadium (2000146966)
https://www.acff.be/club/964/equipe/245425/apercu
https://fr.wikipedia.org/wiki/Royal_Léopold_Football_Club
Probably a bit late to be added but is their any chance of adding AO MYKINAIKOS
https://www.epsarg.gr/teams/display_team.php?team_id=41
http://sites.google.com/site/mikinaikos/home
This season Alemannia Aachen (900) have reactivated their reserve team (879854)
https://www.alemannia-aachen.de/aktuelles/nachrichten/details/Alemannia-Aachen-II-ist-zurueck-25795T/
Just gonna copy and paste over a post from last years Data Issues post
"Couple of mistake found in CDF history db
1919 cdf final shows that CA SPORTS GENERAUX (100795) won the cup - CORRECT
1920 cdf final shows that Cercle Athletique Paris (100796) won the cup - WRONG, this team never reached any final at all and its correct name is CA Paris 14.
The team that reached and won the final is the other Cercle Athletique Paris which wrongly ( thats the mistake for this confusion i believe) goes by the short name CASG when the team:
1) is not extinct at all till nowadays and goes by the name CA Paris - Charenton (playing in regional IDF competitions)
2) short name had to be just CAP or CAPC or CAP Charenton, something like this i guess and not to be confused with the other team, CA SPORTS GENERAUX (100795) which indeed dissolved.
CASG PARIS : https://fr.wikipedia.org/wiki/Club_athlétique_des_sports_généraux_(football)
CAP CHARENTON: https://fr.wikipedia.org/wiki/Cercle_athlétique_de_Paris-Charenton
CA PARIS 14: https://fr.wikipedia.org/wiki/Club_athlétique_de_Paris
ps. too many issues still occurs especially in CDF history, had a post for fm20 and fm21 too
2 teams that are missing from the db and are extinct today are Olympique de Pantin and Fc Nancy, consider to add them at some point for better realism (Pantin won the 1st CDF,not Red Star, and reached two more times into the final) and AS Nancy Lorraine has a lot of credits in FM history when it shouldnt , as FC Nancy had those credits and today is still active as at some point fused with Co Villiers and formed Co Villiers Nancy, the latter curiously existing in the db