Nechama Rivlin, the wife of Israeli President Reuven Rivlin, has died. She was 73. The president's office announced she had passed away of lung failure, three months after receiving a transplant. Nechama Rivlin had been ill for years, but still regularly appeared in public alongside her husband with a mobile oxygen device.<br />''      <br />'' Israeli Prime Minister Benjamin Netanyahu expressed deep sorrow over her passing, lauding her heroic battle against her illness. <br />''  <br />