Horrid Henry is a British animated series based on the books written by Francesca Simon.
They also have a Spanish dub called Henry El Terrible (English: Henry The Terrible) and it aired on Clan TVE in Spain and streamed on Netflix in Argentina and Mexico.
All of the episodes are lost and not recorded.
If you don't believe this page, Here's proof that this dub is real on the Netflix website, It's the only proof but it's unavailable.