Saudi Arabia's King Abdullah Given Simple Muslim Burial.

Friday's funeral of Saudi Arabia's King Abdullah was a relatively simple affair in line with the austere form of Islam practiced by one of the world's wealthiest ruling families.

The body of the former custodian of Islam's two holiest cities, Mecca and Medina, was bathed according to Islamic ritual. The late ruler, whose net worth has been estimated at around $20 billion, was then wrapped in two pieces of plain white cloth — the standard shroud for all Muslims.

According to tradition, nothing out of the ordinary was to be done to King Abdullah's body. It was taken to the Imam Turki Bin Abdullah Grand Mosque in the capital Riyadh for the funeral prayers at around 3:15 p.m. (7:15 a.m. ET). In line with codes that dictate that a tribal chieftain be accessible to everyone in his community, the ceremony was open to the public. Women were able to attend, sitting in the women's section of the mosque.

After the funeral, Abdullah's shrouded body was carried on a board and driven across an empty desert to Al Oud cemetery, which is home to raised graves. A black truck bearing Abdullah's body came to a stop, and Saudi royals gathered at his gravesite. His successor, the new King Salman, was dressed in a simple black gown.

A group of men lowered the pallet containing Abdullah's body to the ground, and gently tipped it toward the unmarked grave. The body was set inside the burial plot, and mourners threw handfuls of yellow-colored soil onto it. That dirt was then covered with a bed of small stones as the mourners look down. They slowly turned away, led by King Salman.