where did its name originate from?
"York" comes from the Viking name for the city, Jórvík. The word "Shire" is either from the Old Norse word Skyr or from Old English Scir meaning care or official charge.
Yorkshire
"York" comes from the Viking name for the city, Jórvík. The word "Shire" is either from the Old Norse word Skyr or from Old English Scir meaning care or official charge. 
which king died from a surfeit of lampreys King Henry I when did he become king? 1100 where was he born? In the town of Selby in Yorkshire, England what is the above mentioned county known for? Recognised as a geographic territory and cultural region
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Yorkshire [SEP] Toponymy
Yorkshire or the County of York was so named as it is the shire (administrative area or county) of the city of York or York's Shire. "York" comes from the Viking name for the city, Jórvík. The word "Shire" is either from the Old Norse word Skyr or from Old English Scir meaning care or official charge. The "shire" suffix is locally pronounced "shuh", or occasionally , a homophone of "sheer".