did this law ever decline?
Yes, it began to decline with the availability of other forms of assistance.
English Poor Laws
The Poor Law system began to decline with the availability of other forms of assistance. 
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. how long did this king reign? For fifty years (1327 to 1377). where was he born? Windsor castle. what kind of chivalry did he have? Three is a story regarding him rescuing his favorite, Joan of Kent from an embarrassing situation. when did he issue that law? 18 June 1349. who was this law aimed at? At the workers in initial stages. how was tudor poor law related to the english law? The English Poor Law System was codified during the Tudor period. can you tell me one way this law helped the poor? Relief was provided to those too ill or old to work under this.
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English Poor Laws [SEP] Decline and abolition
The Poor Law system began to decline with the availability of other forms of assistance. The growth of friendly societies provided help for its members without recourse to the Poor Law system. Some trade unions also provided help for their members. The Medical Relief Disqualification Removal Act 1885 meant that people who had accessed medical care funded by the poor rate were no longer disqualified from voting in elections. In 1886 the Chamberlain Circular encouraged the Local Government Board to set up work projects when unemployment rates were high rather than use workhouses. In 1905 the Conservatives passed the Unemployed Workman Act which provided for temporary employment for workers in times of unemployment.