- thedialog.org international-news/belgiums-world-…
- christies.com en/lot/lot-5694350
- simonis-buunk.com artist/emile-baes/artworks-for-…
- biographs.org albert-i
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- tumblr.com elisabeth515/tagged/king albert i of …
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- unofficialroyalty.com king-albert-i-of-belgium/