Mah-Jongg or Jongy was a ring-tailed lemur owned by Virginia and Stephen Courtauld, wealthy English philanthropists from a family of industrialists.
Jongy was purchased at Harrods, one of London's most upmarket department stores, in 1923 and lived with the Courtaulds for fifteen years, accompanying the couple on their travels and changes of residence. Jongy died at their home, Eltham Palace, Greenwich, in 1938. Jongy had his own room there, which, like the rest of the house, was centrally heated – an innovation for its time. The room had a bamboo ladder that accessed the entrance to the house.[1][2]