Thanks for your contributions to Wikipedia, and in particular, for adding authority control information to an article. You added some identifiers using parameters such as |BNF=XX852201. Did you know that all of the identifiers used in this template are stored in Wikidata, and by adding it to Wikidata all other language Wikipedias will also benefit?
This is just a friendly message to inform you that sometime in the future, local parameters will not deprecated from the {{authority control}} template. Therefore all data should be recorded in Wikidata. Below is a short guide on how to do this.