Frankel turned officially five on Monday, and even more outstanding mares have been lined up to be covered by Flat racing's superstar as he embarks upon his career as a stallion later this week.
Now at owner Khalid Abdullah's Banstead Manor Stud in Newmarket after being retired from the track unbeaten in 14 starts, Frankel has already attracted some of the top names such as Alexander Goldrun, Danedream, Dar Re Mi, Midday, Stacelita and Vodka.
Further additions to his visiting book have now been announced, such as Flirtation (dam of English and Irish 1000 Guineas winner Attraction), Maycocks Bay (dam of dual Oaks winner Sariska), Stacelita's dam Soignee, and Zomaradah, the dam of Irish 2000 Guineas winner Dubawi.
Juddmonte Farms general manager Philip Mitchell said: "His book of mares is as one would hope and expect for 'the best racehorse ever'.
"We are most grateful to all the breeders in Europe, America and Japan, who have put their faith in Frankel and as a result we have one of the most impressive books of mares that a first-season sire has received."
Simon Mockridge, stud manager, said "Frankel has really pleased us since arriving at the stud last November.
"He settled in very quickly and showed us from the start that he is an 'alpha male'.
"He is an intelligent horse with an active mind, and physically he looks really well in himself.
"Just as when he was a racehorse, his appetite is fantastic.
"He has already put on 45 kilograms since his arrival.
"Like the other stallions here, he will be very busy from this week until the end of June.
"But his preparatory exercise has gone well and we are looking forward to him starting his stud career."