"Prinsessan Sibylla 100 år". kungahuset.se (in Swedish). Swedish Royal Court. 2008. Archived from the original on 18 September 2021. Retrieved 19 September 2021.
"Prinsessan Sibylla 100 år". kungahuset.se (in Swedish). Swedish Royal Court. 2008. Archived from the original on 18 September 2021. Retrieved 19 September 2021.