First construction Si Musa was descended from a family of
black slaves which served the Moroccan
makhzen (royal government) and reached the highest offices in the country. He was first
hajib (similar to a
chamberlain) then grand vizier under
Muhammad ibn Abd al-Rahman, who reigned from 1859 to 1873. Among the existing parts of the palace today, the "Grand Riad" or large
riad garden and its adjoining rooms in the northern part of the palace date from Si Musa's time and are also consequently known as the
Dar Si Moussa. The two chambers on the east and west sides of the garden contain an inscription which dates their construction to 1866–7. As Abdelaziz was only sixteen, Ba Ahmed became the effective ruler of Morocco until his own death from disease in 1900. Ba Ahmed was responsible for constructing most of the Bahia Palace's southern parts, which include various smaller courtyards and riad gardens. The entire palace was built on one level, possibly as Ba Ahmed's own physique (which was described as stout and obese) made it more difficult for him to go up and down stairs. The palace is occasionally still used by the
King of Morocco to receive foreign dignitaries or host events. The palace was subsequently closed for repairs and was reopened to visitors in October 2023. == Architecture ==