Funerals and Burials
The Anglo-Saxon culture had a few different 
traditions on how they held their funerals and 
buried their people.
Funeral by Ship
Funeral Pyre
Burial Mound
"He decreed that all the dead should be burned, and put on the funeral pyre with all their possessions. He also said that everyone should come into Valholl with all the property that he had on the pyre, and he should also enjoy the use of what he himself had buried in the earth, and the ashes should be carried out to sea or buried in the earth
With a funeral Pyre, the people were burned over a fire. Some of their ashes went up to the sky with the heat. What was left was taken out to sea or buried. 
“A funeral pyre was readied and gold brought from the hoard. The best of the Danes were ready for the pyre. At the fire were blood stained shirts of mail, boar images all golden and iron-hard. Not a few noble ones had been destroyed by wounds!” “the warrior ascended,
waned to the clouds” 
(Episode 5)
In funerals on ships, the ships would be loaded with riches, and weapons and armours, and sometimes with a virgin. The ship would be sent out to sea while lit on fire. The ship would be burnt up over the sea leaving the body to spread through the ocean either in ashes or still with the boat. Eventually the boat would sink to the bottom of the sea to not be found again. Mainly used by Vikings. 
"Shield died at his fated hour, went to God still strong. His people carried him to the sea, which was his last request. In the harbor stood a well-built ship, icy but ready for the sea. They laid Shield there, propped him against the mast surrounded by gold and treasure from distant lands. I've never heard of a more beautiful ship, filled with shields, swords, and coats of mail, gifts to him for his long trip."
(prologue)
The Anglo-Saxons built barrows to honor their dead nobles. The size of a barrow is proportional to the importance of the individual buried there. Barrows were reserved for the elite of the Anglo-Saxon society. 

Sometimes there is just the body under the mound, and other times, there is a main grave, and around this grave there are sometimes other bodies buried at that time. These bodies were also sometimes wives or servants of the noble for whom the barrow was built. Sometimes the mounds will hold urns with the ashes of the noble and sometimes all a mix of the noble and their family.

Also, riches sometimes were put around or in the mounds with the bodies.
Sutton Hoo is an example of the the Anglo-Saxons with their mounds.  A ship was dragged from the river Deben, up to the top of a 100-foot-high cliff, and laid in a dug up trench. A  hut was built help build the big coffin and a lot of treasures and gears were buried with. The trench had then been filled in and a mound raised over it.
The Geats built a mound then, in ten days, high and broad on the hill, a beacon for the warrior widely seen by sailors. They surrounded the ashes by a wall, as splendid as the cleverest men could make. In the mound they placed rings and bracelets and all such things as they'd found in the hoard. They left that treasure in the hands of the earth, as it lies still, as useless to men as it had been before."

"For him then they prepared a huge funeral pyre on the earth, hung with helmets, war-shields, and bright coats of mail, as Beowulf had asked. There they laid the famous prince and lamented that beloved lord. Warriors then built the greatest of fires. Wood-smoke ascended, dark black over the flames. That roar wrapped around sorrowful weeping. The wind stood still. Then his bone-house broke, the heart burned."
Beowulf's funeral