DARK SOULS 3 Dragon Chaser's Ashes Location

Archdragon Peak where you fight Nameless King, on the path to where you get the twinkling dragon body stone. To the left of an archway, on a corpse being guarded by a Rock Lizard. Give it to the Shrine Handmaid to get her to sell Mossfruit, Titanite Chunks, Twinkling Titanite and Titanite Scales.