Big Mom/Gallery/EP667, EP746, EP764, EP770

Episode 667

 * Short summary: Fujitora mentions the Yonko, which includes Big Mom.

Episode 746

 * Short summary: Doflamingo talks Tsuru about who’s going to rule the sea, mentioning Yonkos like Big Mom.

Episode 764

 * Short summary: Capone Bege mentions the threat level of Big Mom.

Episode 770

 * Short summary: Nekomamushi mentions to the Straw Hats that two of the four Road Poneglyphs are in the hands of Emperors Big Mom and Kaido.