It’s long been suspected the facial condition came from inbreeding within the royal family, but new research claims to prove a link between the trademark chin and numerous unions between cousins ...

A portrait (by Juan Carreño de Miranda) of Charles II, the last of the Spanish Habsburg kings, and his father, Philip IV (painted by Diego Velázquez, of whom the king was a patron). Both men had ...

While researchers acknowledged that it's possible the Habsburg jaw was the result of a chance appearance of traits, they argue the odds suggest the deformity was produced by inbreeding.

Scientists have confirmed that facial deformities among the House of Habsburg were caused by inbreeding, according to a newly-published study. The twist: they reached their findings by studying ...

A facial deformity known as "Habsburg jaw," famously noted in the Habsburg dynasty of Spanish and Austrian royals, can be attributed to inbreeding. According to a new study published in the Annals ...

If you thought that obsessive royal-watching was a pastime established during the days of Princess Diana, you'd be wrong. As long as there have been people who wear crowns, regular folks have loved ...

T he Habsburgs, once a mighty Royal dynasty that held sway over vast Spanish and Austrian territories, are now notorious for the pronounced "Habsburg jaw", a striking facial deformity. A study ...

If your jaw protrudes, it’s known as prognathism. This trait is sometimes called extended chin or Habsburg jaw. Typically, prognathism refers to the lower jaw sticking out more than usual ...

Many of the kings and queens of the Spanish Habsburg dynasty had a distinctive facial malady known as the Habsburg jaw. What caused it?