On June 29th, 1875, Ferdinand I of Austria died. He was second child and oldest son of Francis II and his second wife, Maria Theresa of Naples and Sicily.
Due to the centuries of inbreeding among the royal families of Europe, particularly prevalent among the branches of the Habsburg family, he was born with multiple physical and mental problems. A younger sister, Maria Anna, also suffered from similar issues. He succeeded his father as Emperor upon his death with a regent’s council ruling in his stead, though he was never officially declared incapable of ruling.
He was married to Maria Anna of Sardinia, but it’s though very unlikely the marriage was ever consummated and the couple had no children.
During the revolution of 1848, he was persuaded to abdicate in favour of his nephew, who would go on to rule for nearly 70 years as Franz Joseph I. Ferdinand and his wife lived in retirement together after that, and he died in Prague at the age of 82.
He was buried in Tomb 62 in the Imperial Crypt in Vienna. Maria Anna outlived him by nine years, dying in 1884, and was buried next to him in Tomb 63.