William may refer to:
William (II) was the margrave (comes terminalis, "frontier count") of the March of Pannonia in the mid ninth century until his death on campaign against the Moravians in 871. In his day, the march orientalis corresponded to a front along the Danube from the Traungau to Szombathely and the Rába river and including the Vienna basin. It was a military frontier zone against Avaria.
William co-ruled the march with his brother Engelschalk I and both died on the same campaign. They were replaced by Aribo, but Engelschalk's son Engelschalk II led their heirs in rebellion against Aribo in what became known as the Wilhelminer War from 882 to 884. The "Wilhelminers" were descendants of William's father, William I.
William (929 – 2 March 968) was Archbishop of Mainz from 17 December 954 until his death. He was the son of the Emperor Otto I the Great and a Slav mother.
On 17 December 954, he was appointed to the archbishopric of Mainz following the death of the rebellious former archbishop Frederick. William received confirmation from Pope Agapetus II and also the title of Apostolic Vicar of Germany, a title which made the archbishops of Mainz the pope's deputies in Germany and granted the archdiocese of Mainz the title of Holy See. From his father William also received the title of "Arch-Chaplain of the Empire."
William died at Rottleberode in 968 and was buried in St. Alban's Abbey, Mainz.
In Larry Niven's fictional Known Space universe, a Belter refers to a resident of the Asteroid Belt around Sol, sometimes known as the Sol Belt to differentiate it from Alpha Centauri's Serpent Swarm.
Rugged and highly individualistic, Belters make their living by mining the ores from the asteroidal rocks. Belters inhabit the main belt, trojan asteroids of the outer planets, centaur planetoids and NEA's.
Transient by nature, the only home they typically own is their pressure suit, and perhaps their singleship. As a form of heraldry, Belters decorate their skintight suits with elaborate (and often expensive) torso paintings. Most Belters, male and female, sport what is known as the Belter Crest: shaving their heads on the sides, leaving a strip of hair down the center resembling a mohawk. However the hair in the back may be of any length, particularly for women.
In lieu of (or perhaps in addition to) a wake for their dead, Belters have a custom known as the ceremonial drunk. When a Belter dies, his or her close friends will typically get intoxicated (either alone or in groups according to one's nature or circumstance) and reminisce about the deceased.