The name was shortened from Brahmaputra to Brahma in 1852 when a small flock was given to Queen Victoria.
Origin
Mid 19th century: named after the Brahmaputra, where it originated.
Brahmaputra2
proper nounˌbrɑːməˈpuːtrə
A river of southern Asia, rising in the Himalayas and flowing 2,900 km (1,800 miles) through Tibet, north-eastern India, and Bangladesh, to join the River Ganges at its delta on the Bay of Bengal.