Jo Grant's thirteenth grandchild
From Tardis Wiki, the free Doctor Who reference
Jo Grant's thirteenth grandchild was born in Dubai in 2010 or 2011. He was the cousin of Santiago Jones. His grandparents were Jo and Clifford Jones. (PROSE: Death of the Doctor)
According to the Eleventh Doctor, he was dyslexic but a great swimmer. (TV: Death of the Doctor)