Goodwood was not rewarded with a King’s Plate for the first 30 years of its history despite the first King’s Plate being run in 1634. King William IV loved racing at Goodwood, owning many winners and having a close friendship with the Duke of Richmond and, in theory, being distant relations. His Majesty’s Plates were universally worth 100 Guineas, were free to enter, often attracted the best horses of the day and were first staged at Goodwood in 1831, although they no longer form part of the Goodwood race programme.
Early history:-The inaugural running of His Majesty’s Plate was on Friday 19th August 1831 when Lord Lowther’s 3-year-old bay colt Midhurst beat Anthony and Carthago.

Goodwood
Her Majesty’s Queens Plate of 100 Guineas weight for age over 3 miles 5 furlongs
1. CARIBOO (2/1), brown colt owned by Mr Greville and ridden by Nat Flatman
2. WOOLWICH (4/5 fav), chestnut horse owned by Mr Campbell and ridden by Job Marson
3. HARP, bay filly owned by Mr Carew and ridden by Basham
4. PHLEGETHON, bay horse owned by Lord Exeter and ridden by Harlock
5. PRESTO, bay horse owned by Mr Rayner and ridden by G E Sharp