Man pages matching name markdent::event::htmlentity in section 3pm:

Markdent::Event::HTMLEntity.3pm.en	debian 10 / libmarkdent-perl
Markdent::Event::HTMLEntity.3pm.en	debian 11 / libmarkdent-perl
Markdent::Event::HTMLEntity.3pm.en	debian 12 / libmarkdent-perl