One of the most successful and well-known Irish show jumping mares of the last century, the traditionally-bred Irish Sport Horse Millstreet Ruby passed away recently at her home in Millstreet, at the age of 33.Owned and bred by Noel C Duggan, Millstreet Ruby was sired by the famous Irish Draught stallion King of Diamonds out of the Thoroughbred mare Carran, by Anthony.