i still dont understand the relationship between jake and caliborn (like with lord english and jake english, and jakes shirt logo) could you please explain ?

Okay so Jake’s Grandma was raised by Condy and she knew that Condy worked for English and hated him so Grandma made her own company to compete with Crockercorp.  To sprite the Condesce, Grandma named her company after English and design all the produces in his image and even changed her last name to English just to piss the Condesce off.