Simplify the following text for a Grade 11 native English-speaking person.
Original: Guy Fawkes ( 13 April 1570 â `` 31 January 1606 ) , also known as Guido Fawkes , the name he adopted while fighting for the Spanish in the Low Countries , belonged to a group of provincial English Catholics who planned the failed Gunpowder Plot of 1605 .
Simplified: Guy Fawkes ( 13 April 1570 â `` 31 January 1606 ) sometimes known as Guido Fawkes , was a member of a group of Roman Catholic revolutionaries from England who planned to carry out the Gunpowder Plot .