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Martha  Carlin,  ‘Palaeography  and  forgery:  Thomas  D.’s  Book  of  theHartshorn  in  Southwark’,  in  Medieval Londoners:  essays  to  mark  the  eightieth  birthday  of  Caroline  M.  Barron,  ed.  E.  A.  New  and  C.  Steer  (London, 2019), pp. 71–94. License: CC-BY-NC-ND 4.0.Open Accesshttps://www.doabooks.org/doab?func=search&#38;query=rid:44646"The  Hartshorn  controversy  provides  insights  into  how  a  title  conflict  might  be  disputed  outside  the  courts  in  fifteenth-century  England  and  reveals  the  extent  of  archival  research  and  professional  expertise  that  this  might  entail.  It  is  especially  intriguing  to  find  an  account  of  the  use  of  palaeography as well as diplomatic to argue a case in the 1470s, two centuries before Jean Mabillon’s pioneering publication of De re diplomatica in 1681. Thomas D.’s Liber de la Hertys Horne in Suthwerk (Southwark 204) presents an  array  of  evidence,  analyses  and  arguments  that  reflect  its  compiler’s  exhaustive  title  search  in  the  muniments  collection  of  Bishop  Waynflete,  his research on the dates of London’s mayors and sheriffs in the Guildhall archives, his attempted examination of the muniments at Lesnes abbey and his familiarity with the wax, seals, inks and scripts of the thirteenth century." (p. 88). Thomas D. is Thomas Danvers (p. 83), who died in 1502.On Forgeries in Archivalia:https://archivalia.hypotheses.org/9580