MSBP Definition. Child\'s illness fabricated or induced by the parent (usually the mother)Mother develops a dependent relationship with her child\'s doctor / medical staff. Baron Hieronymus Karl Friedrich von Munchausen. The baron was a mercenary in the 18th century. In 1785, Rudolph Eric Raspe, badly in need of money, wrote a book about the Baron\'s travels: Original Travels and Surprising Adventures of Baron Munchausen.The stories were marvelous, but fictitious.