It seems like every week we learn a new tidbit about Princess Diana's teenage home, Althorp House.

The residence where the Princess of Wales lived from 1976 all the way until her engagement to Prince Charles in 1981 is currently owned by her younger brother, Charles Spencer. The 9th Earl Spencer has been in possession of the house since 1992, and he often shares insider photos and historical facts about the residence on his Instagram.

In his latest post, the earl offered exciting news when he revealed that a new documentary will dive into the history of Althorp. He said, “This was fun & fascinating to do—looking for the ancient Anglo-Saxon settlement of “Ollethorp”, which was registered in Domesday Book of 1086 as being in the grounds of @althorphouse, but then disappeared.”

He added, “A privilege to have the expertise of Dr Cat Jarman—and Professor Mark Horton—leading the dig. We found more than we were expecting….It certainly added to my endless fascination with the distant past. This programme airs on Channel 4 on 15 Nov. #archaelogy #lostvillage #thedig #thewhiteship #riverkings #althorp.”

The program, titled Ancient Secrets of Althorp with Charles Spencer, will air November 15 at 9 p.m. GMT in the U.K. on Channel 4. Production company Spun Gold produced the special, which was directed by Peter Gauvain.

This doc will serve as a further look into the place that Lady Di once called home. In the past few months, her brother has posted some rare throwbacks of the Spencer household, including one vintage shot of the breakfast room from the year he and Princess Diana's grandfather was born.

Always the historian, the 9th Earl Spencer has also been busy writing historical books, including his latest release, The White Ship: Conquest, Anarchy and the Wrecking of Henry I's Dream, which was a No. 1 bestseller on Amazon in the U.K.

While Charles stays busy, we'll be anxiously awaiting more facts about the history of Althorp.

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