G un pow der ▁Pri est ley " ▁came ▁from ▁a ▁phrase ▁in ▁it . ▁Edmund ▁Bur ke ▁picked ▁up ▁on ▁the ▁met ap hor , ▁which ▁in ▁fact ▁could ▁be ▁found ▁in ▁other ▁places ▁in ▁Pri est ley ' s ▁writ ings . ▁ ▁Burn ▁became ▁identified ▁with ▁a ▁group ▁of ▁local ▁" Ch urch - and - K ing " ▁cler gy ▁in ▁B irmingham , ▁including ▁George ▁Cro ft ▁and ▁Sp encer ▁Mad an , ▁and ▁oppon ents ▁of ▁Pri est ley , ▁if ▁not ▁the ▁most ▁extreme . ▁On ▁Pri est ley ' s ▁account , ▁he ▁met ▁both ▁Burn ▁and ▁Mad an ▁through ▁committee ▁work , ▁and ▁was ▁on ▁reasonable ▁terms ▁with ▁them ; ▁even ▁on ▁visit ing ▁terms ▁with ▁Burn . ▁A ▁subsequent ▁pam ph let ▁of ▁Burn ▁refers ▁to ▁the ▁B irmingham ▁ri ots ▁of ▁ 1 4 ▁July ▁ 1 7 9 1 , ▁its ▁after math , ▁and ▁Pri est ley ' s ▁App e al ▁to ▁the ▁Public ▁of ▁ 1 7 9 2 . ▁Burn ' s ▁later ▁jud g ement ▁( 1 8 2 0 , ▁in ▁conversation ▁with ▁Francis ▁William ▁Pitt ▁Green wood ) ▁was ▁that ▁Pri est ley ▁had ▁handled ▁him ▁roughly ; ▁but ▁in ▁October ▁ 1 8 2 5 ▁he ▁expressed ▁public ▁regret ▁at ▁a ▁dinner ▁for ▁his ▁own ▁as per ity . ▁ ▁Death ▁Burn ▁died ▁at ▁B irmingham ▁ 2 0 ▁May ▁ 1 8 3 7 ; ▁at ▁the ▁time ▁of ▁his ▁death ▁he