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The Indian ministry posted a letter it sent to Sotheby's and Chris Peppé, the great-grandson of William Claxton Peppé, who excavated the relics in 1898, on Instagram.

Chris Peppé, great-grandson of William, told the BBC the family looked into donating the relics, but all options presented problems and an auction seemed the "fairest and most transparent way to transfer these relics to Buddhists".

“I believe that the Mexican, the grandson, the son, the great-grandson of Mexicans who have come here to seek a future has done good for this country.”

More than 110 years later, the same set of bagpipes are still being played - by Malcolm's great-grandson Alasdair Campbell.

Later Wednesday, Jill Biden posted a photo on Instagram of herself and the president with their great-grandson, William Brannon Neal IV.