Otto I Emperor of the Holy Roman Empire

Crowned King of the Germans 936 at Acchen, Charlemagne's headquarters, the coronation banquet reviving the Carolingian banquet of Roman origin. The Duke of Franconia served as the steward, the Duke of Swabia Conrad Duke of Swabia or Herman II of Swabia served as cup-bearer, the Duke of Lorraine was the chamberlain and the Arnulph Duke of Bavaria was the marshal.

He then reduced the Dukes of Bavaria, Franconia, Lorraine and Saxony, placing the great duchies in the hands of relatives and family, took Conrad, the boy King of Arles under his wing in 937.

Defeated by the Bavarians in 944 at Wels but conquered Boleslav of Bohemia in 950, placing Bohemia under the kingdom of Bavaria.

Crown of Germany passed to Otto II

Son of Henry I the Fowler, king of the Germans, and Matilda of Ringelheim, was Duke of the Saxons, King of the Germans and arguably the first Holy Roman Emperor (While Charlemagne had been crowned emperor in 800, his empire was divided amongst his grandsons, and following the assassination of Berengar of Friuli in 924, the imperial title lay vacant for nearly forty years.)

Extensive info: http://en.wikipedia.org/wiki/Otto_I%2C_Holy_Roman_Emperor

Duke of Holy Roman Empire, Count in South Thuringia; known as "the Illustrious" and "the Grand".

Saxon nobleman; by later authors, he is often called Otto the Illustrious. The younger son of Liudolf, Duke of Saxony and his wife Oda, Otto presumably became duke of Saxony shortly before his death, but no details are known.

According to Widukind of Corvey, Otto was offered the kingship of the East Franks in 911 and did not accept it, but the truthfulness of this report is considered doubtful. Otto's wife was Hathui, daughter of Henry, Duke of Austria. He is named as count of South Thuringia in 888, and as count of the Eichsfeld in 908; he was also lay abbot of Hersfeld Abbey. Otto is buried in the monastery church of Gandersheim. His son Henry, later to be King Henry the Fowler, succeeded him as duke of Saxony.

Son of Owain Hywel

Ruled Deheubarth and Gwynedd 986-999

His father retired from the throne before his death, leaving Deheubarth in the hands of his two sons, Maredydd and Einion.
984 - Einion killed in a borderline skirmish.
986 - Maredydd led a devastating raid on Gwynedd, killing the King of Gwynedd, Cadwallon Ieuaf and reuniting Gwynedd and Deheubarth again.
987 - Vikings attacked Anglesey, Maredydd paid for hostages and ensured safety for refugees. He allowed Vikings to settle there, using them for future raids on Morgannwg.
He took advantage of the weak King of England, Athelred II and tackled Mercia's approaches to Wales, especially in the area of Radnor.
999 - At his death, Gwynedd fell to a series of claimants, won by the strongest, Llywelyn Seisyll who married Maredydd's daughter Angharad, also claiming Deheubarth.

52 EB17

Maredudd ap Owain (died 999) was a Prince of Gwynedd and of Deheubarth. Maredydd was the grandson of Hywel Dda. His father, Owain ap Hywel Dda, was king of Deheubarth. As Owain grew too old to lead in battle his son Maredydd took his place, and in 986 captured Gwynedd from Cadwallon ab Ieuaf. On Owain's death in 988 Maredydd also became ruler of Deheubarth. He may have controlled all Wales apart from Gwent and Morgannwg.

He is recorded as raiding Mercian settlements on the borders of Radnor and as paying a ransom of one penny a head to rescue some of his subjects who had been taken captive in Viking raids. Danish raids were a constant problem during Maredudd's reign. In 987 Godfrey Haroldson raided Anglesey, killing one thousand and carrying away two thousand as captives. Maredudd died in 999 and was described by the annalists as "the most famous king of the Britons". Following his death, the throne of Gwynedd was recovered for the line of Idwal Foel by Cynan ap Hywel.

http://en.wikipedia.org/wiki/Maredydd_ab_Owain

Adlis ruled the Swedes after the death of his father, a very rich man who went on many expeditions. One journey was to Jutland when the king, Geirthjof, and his wife, Alof the Great. Nothing is known of their children. A young woman, Yrsa, was beautiful, intellgent and loved. Adlis took her for his wife and she became the queen of Sweden.
Heimskringla, Ynglinga Saga, Section 32

Note: the story goes that Olaf/Alof had an affair with the Helgi Halfdansson, the King of Denmark while Geirthjof was away, and Yrsa is their daughter.

Helgi Halfdansson ruled Leidra and came to plunder Sweden. Adlis ran, Helgi took Yrsa and made her his wife, and had a son, Rolf Krake. When the boy was three, Yrsa's mother,  Alof came to Yrsa to tell her that she was her mother and that her husband was her own father. Yrsa returned to Sweden and lived there as queen.

When Rolf was eight, he was taken to Leidra to be king after Helgi was killed on an expedtion. Adlis had fought and defeated King Ole of the Uplands in a battle on the ice of the Venner lake, accounted in the "Skjoldunga Saga." Adlis had taken Ole's horse, Raven. He bred another horse, also named Raven from Ole's horse, and sent it to King Godget as a gift. Godgest was killed trying to ride the unmanagable horse Raven. Then Adlis was killed riding the Raven horse he had taken from Ole, his skull was split, and his brains dashed out against a stone. He was buried at Uppsala.
Heimskringla, Ynglinga Saga, Section 33

Eadgils was a 6th century king of Sweden who appears in the Old English epic Beowulf.

Eadgils is generally considered to be the same king as Aðils, or Athisl, who appears in the Norse sagas and Gesta Danorum. This king was also the son of a king named Ohthere and just like in Beowulf, Adils killed a king named Onela (Ali) with foreign assistance (see also Origins for Beowulf and Hrólf Kraki).

http://en.wikipedia.org/wiki/Adils

Called Otto of Worms, was duke of Carinthia from 978 to 985 and again from 1002 until his death. The only son of Conrad the Red, Duke of Lotharingia, Otto was appointed duke of Carinthia and margrave of Verona when Henry I, Duke of Carinthia, had unsuccessfully rebelled against the king during the War of the Three Henries and was deposed. In 985 he lost his duchy, but could retain the title of duke as "duke of Worms". After the death of the margrave, Otto received the March of Verona back. In 1002, Otto was a candidate for king of the Holy Roman Empire; but he withdrew and received the Duchy of Carinthia from the newly elected king Henry II, the former duke, in return. He was succeeded as duke by his son, Conrad.

Otto or Oddone in Italian, (1010 – 1060) ascended the throne after the death of his elder brother, Amedeo. He married Adelaide, heiress of Turin and Susa, and had four children.

Peter

Amadeo

Berta or Bertha, Countess of Moriana (d. 1087) married Henry IV, Holy Roman Emperor.

Adelaide, (d. 1080) married Rudolf of Swabia (Rodolfo di Svevia in Italian)