That's a painting of a Spanish king Charles II, and the story is they made him look better than he actually appeared in real life. If you looked at his family tree at a certain point out of 24 people he was descended from, it was only like 2 or 3 people that married in from outside the family. the remaining 21 were all uncles impregnating nieces, fathers and daughters, and brothers and sisters.
His lower jaw stuck out more than depicted in the picture, his tongue was 3 sizes too large and wouldn't let his mouth close, his teeth were oddly numbered and misshapen. and the most impressive part about him was the autopsy report. "heart was the size of a peppercorn; his lungs corroded; his intestines rotten and gangrenous; he had a single testicle, black as coal, and his head was full of water."
The last king of Spain was an incapacitated, malformed invalid resulting from the most absurdly documented cases of incest ever recorded before his lineage died with him. and most certainly did not look anywhere near as flattering as his paintings depicted him.
