Possible Clues:

• Oman, for one
• Late aunt's worked in Oman, perhaps
• Eccentric late aunt's land
• Brunei or Oman
• Kingdom kin
• Turkey was, in the last month, brought into sick room and devoured
• A last tune played in Muslim territory
• Brunei, e.g
• Muslim dominion
• Aunts et al badly treated in Muslim autocracy