how long did this king reign?
For fifty years (1327 to 1377).
Edward III of England
Edward III (13 November 131221 June 1377), also known as Edward of Windsor before his accession, was King of England and Lord of Ireland from January 1327 until his death.
who made changes in old laws preventing the rich from taking from the poor UNANSWERABLE in which place did the  english poor laws exist? England and Wales. between which years did this law prevail for? Roughly from 1536 to about 1967. what was the law about? Basically it was a system to deal with beggars and vagrancy. who issued medieval poor laws? King Edward III.
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Edward III of England [SEP] Introduction
Edward III (13 November 131221 June 1377), also known as Edward of Windsor before his accession, was King of England and Lord of Ireland from January 1327 until his death. He is noted for his military success and for restoring royal authority after the disastrous and unorthodox reign of his father, Edward II. EdwardIII transformed the Kingdom of England into one of the most formidable military powers in Europe. His fifty-year reign was the second-longest in medieval English history, and saw vital developments in legislation and government, in particular the evolution of the English Parliament, as well as the ravages of the Black Death.