Sweden
Sweden has had an Ombudsman Institution since 1809. At that time Sweden was ruled by the King and therefore the Riksdag, which then represented the Four Estates, considered that some institution that was independent of the King was needed in order to ensure that laws and statutes were observed. For this reason it appointed a Parliamentary Ombudsman and still continues to do so. The first Ombudsman was appointed in 1810, and the Parliamentary Ombudsmen still follow the basic principles that have applied since then.
Read more about this topic: Parliamentary Ombudsman