Well done TT, I was beginning to worry that I had overcomplicated the thread to death. As you have deduced:
Authorized (2007 – Frankie Dettori); New Approach (2008 Kevin Manning); Commander in Chief (1993 Kevin Manning) were all DERBY WINNERS.
Eric Morecambe used to address his vertically challenged mate as ERN, so:
DERBYWINNERS losing ERN gives a confused Swinderby.
Thanks again & “You have control”