did you notice- the selection committee is chaired by 'Her Majesty Queen Rania of the Hashemite Kingdom of Jordan'?
Other Royals:
Prince Bandar Bin Khalid Al Faisal Saudi Arabia
Prince Mohammed K.A. Al Faisal Saudi Arabia
Hessa Bint Khalifa Al Khalifa Bahrain
Shaikh Mohammed bin Essa Al Khalifa Bahrain
Sheikh Maktoum Hasher Maktoum Al Maktoum Dubai
Prince Zeid Raad Al-Hussein Jordan
Frederik André Henrik Christian Denmark
H.R.H. Prince Jaime de Bourbon Parma the Netherlands
Haakon Magnus Norway
Victoria Sweden
Willem-Alexander the Netherlands
Mathilde Belgium
Mabel van Oranje the Netherlands (she is is the Director for European Affairs of the Open Society Institute)
however, I can't find Akishino's profile.