Former champion jockey Jamie Spencer will take up the role as the first retained rider for Dunaden's owner Sheikh Fahad Al Thani and his family in 2013.
The retainer will give Spencer first call on around 80 horses owned by Al Thani's Pearl Bloodstock Ltd and Qatar Racing Ltd.
David Redvers, racing manager to Sheikh Fahad, confirmed that Spencer will be the first jockey to ride under contract for the owner.
Spencer, 31, won the Irish premiership in 2004 when riding for Aidan O’Brien's Ballydoyle stable.
He quit after only 12 months but went on win the British title the following year and shared the title with Seb Sanders in 2007.
In 2010 he was reunited with O'Brien while riding under contract for Dr Jim and Fitri Hay as the Dubai-based owners had shares in the Ballydoyle stars Cape Blanco and Fame And Glory.
Sheikh Fahad is building a strong global racing empire and securing Spencer is seen as part of the master plan.
Among the horses Spencer will be riding in 2013 will be the two-year-old Hydrogen, the colt purchased by Sheikh Fahad for the top price of 2.5 million guineas at Tattersalls earlier this month.
A trainer is yet to be named for the colt.