The modernizing monarch is gone. King Abdullah bin Abdulaziz al Saud, 90, died yesterday. He was buried in a simple ceremony. The kingdom’s ruler since 2005 — and counterbalance to more hardline clerics — is succeeded by his half-brother, Prince Salman bin Abdulaziz, a traditionalist. But Salman, 79, may also be ailing, and one of his first moves may need to be establishing who among the next generation of princes should follow him.