Lord Benjamin Bunny is Mr. Bouncer's son and Sir Peter, Flopsy, Mopsy and Cotton-Tail's cousin. He wears a dusty brown jacket and clogs. His mum is never shown of mentioned she is Peter Rabbit's aunt.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...