Digitized records in the archives of Nordrhein Westfalen: Online digitized records
Civil Registration records online for Cologne area: http://historischesarchivkoeln.de/lav/index.php
An online index of the death records is available at this link: http://des.genealogy.net/koeln_sterberegister/search/index
Civil Registration records online for Pulheim area, including Brauweiler, Stommel, Freimersdorf [Cologne]. www.pulheim.de. Listed under Rat und Verwaltung; Stadtverwaltung; Stadtarchiv; Digitalisierte Archivalien.
Civil Registration for Rheinland: http://familienbuch-euregio.eu/genius/php/ewoTopics.php?tam=Kahlen&tab=1&sub=PublicAll&sid=de2e0091c42ca46f2d94911e91c8a070&tid=. See blog about this source in Compgen.https://www.compgen.de/2019/08/rheinische-standesamtsregister-von-aachen-bis-issum-online/
See http://familienbuch-euregio.eu/guest.html Click on "Historischen Listen" to retrieve the index to civil registration for many areas of Rheinland.
Civil registration death records available online: https://www.landesarchiv-nrw.de/digitalisate/Abt_Rheinland/PA_3103/PA_3103_02.html
See "Standesamt" in GenWiki: https://wiki.genealogy.net/Kategorie:Standesamt
Cologne civil record inventory: https://historischesarchivkoeln.de/javax.faces.resource/pdf/Koelner_Standesaemter.pdf.jsf?ln=images