McGrath also has a difficult relationship with Richard Corrigan, who suggested that he should work in theatre, days after he had called Corrigan's food "simple and nice".
Guests of Honour at this event have included television presenter Gay Byrne, retired Taoiseach Charles Haughey, international snooker player, Ken Doherty and chefs Clodagh McKenna, Richard Corrigan and Martin Shanahan.
Richard Corrigan rents space within the hotel and runs the restaurant Corrigan's Mayfair.
In 2005 Parker presented the BBC programme Full on Food, together with Heston Blumenthal and Richard Corrigan.
Corrigan achieved a Michelin Star in 1998 and has been awarded many other culinary accolades, including Outstanding London Chef at the London Restaurant Awards.
Richard Nixon | Richard Wagner | Richard Strauss | Richard Branson | Cliff Richard | Richard Gere | Richard Burton | Richard Hammond | Richard | Richard Dawkins | Little Richard | Richard Feynman | Richard Attenborough | Richard M. Daley | Richard I of England | Richard Thompson | Richard Francis Burton | Richard Thompson (musician) | Richard Pryor | Richard Linklater | Richard III of England | Richard Petty | Richard II | Richard II of England | Richard E. Byrd | Maurice Richard Arena | Muhal Richard Abrams | Richard Herring | Richard Wright | Richard Stallman |