Diminutive to Richard?

yes

Richard I was a Norman king. He was born in Beumont Palace in 1157. He reigned from 6 July 1189 - 6 April 1199 (which is when he died). His older brother was William of Poiters and his older sister...

I don't know the answer myself, but I'm presuming that it's because Richard was a bit short on his height, so he was named Little Richard. (I have a nickname too..it's the same as Little Richard's....

NO!

Catesby, Ratcliffe & Norfolk, the townspeople of York and many others.