What is "bebejan"

Bebejan (birth unknown, died 1836) also known as Bebejern or Jerum Jerum, was a Ngurungaeta (leader) of the Wurundjeri people of the present day Australian state of Victoria. He was at the signing of Batman's Treaty in 1835 and signed it along with seven other tribal leaders. The contract itself is historically significant as it was the first and only documented time when Europeans negotiated their presence and occupation of Aboriginal lands directly with the traditional owners. He was also the father of William Barak and brother to Billibellary.