Background: Maelgwn Gwynedd (Latin: Maglocunus; died c. 547) was king of Gwynedd during the early 6th century. Surviving records suggest he held a pre-eminent position among the Brythonic kings in Wales and their allies in the "Old North" along the Scottish coast. Maelgwn was a generous supporter of Christianity, funding the foundation of churches throughout Wales and even far beyond the bounds of his own kingdom. Nonetheless, his principal legacy today is the scathing account of his behavior recorded in De excidio
Context: After the collapse of Roman authority in Britain, north Wales was invaded and colonized by Gaelic tribes from Ireland. The kingdom of Gwynedd began with the reconquest of the coast by northern Britons under the command of Maelgwn's great-grandfather Cunedda Wledig. Generations later, Maelgwn's father Cadwallon Long-Hand completed the process by destroying the last Irish settlements on Anglesey. Maelgwn was the first king to enjoy the fruits of his family's conquest and he is considered the founder of the medieval kingdom's royal family. He is thus most commonly referenced by appending the name of the kingdom to his own: Maelgwn Gwynedd.  By tradition, his llys (English: royal court, literally hall) was located at Deganwy, in the Creuddyn peninsula of Rhos. Tradition also holds that he died at nearby Llanrhos, and was buried there. Other traditions say that he was buried at Ynys Seiriol (English: Island of St. Seiriol, Puffin Island), off easternmost Anglesey. There are no historical records to confirm or deny these traditions.  Historical records of this early era are scant. Maelgwn appears in the royal genealogies of the Harleian genealogies, Jesus College MS. 20, and Hengwrt MS. 202. His death in a "great mortality" of 547 is noted in the Annales Cambriae. Tradition holds that he died of the 'Yellow Plague' of Rhos, but this is based on one of the Triads that was written much later. The record says only that it was a "great mortality", which followed the outbreak of the great Plague of Justinian in Constantinople by a few years.  Maelgwn was a generous contributor to the cause of Christianity throughout Wales. He made donations to support Saint Brynach in Dyfed, Saint Cadoc in Gwynllwg, Saint Cybi in Anglesey, Saint Padarn in Ceredigion, and Saint Tydecho in Powys. He is also associated with the foundation of Bangor, but hard evidence of this is lacking. In his 1723 Mona Antiqua Restaurata, Henry Rowlands asserts that Bangor was raised to an episcopal see by Maelgwn in 550, but he provides no source for the assertion.  The only contemporary information about the person is provided by Gildas, who includes Maelgwn among the five British kings who he condemns in allegorical terms in his De Excidio et Conquestu Britanniae. He says Maelgwn held a regional pre-eminence among the other 4 kings, going on to say that he overthrew his paternal uncle (Latin: avunculus) to gain the throne; that he had taken up life as a monk but then returned to the secular world; that he had been married and divorced, then remarried to the widow of his nephew after being responsible for his nephew's death; and that he was tall.
Question: What was his Ilys?
Answer: English: royal court, literally hall

Background: Sonata Arctica is a Finnish power metal band from the town of Kemi, Finland. Created as a hard rock band named Tricky Beans, they later changed to Tricky Means and finally to Sonata Arctica, when they shifted to power metal. The current line-up consists of singer, keyboardist and songwriter Tony Kakko, guitarist Elias Viljanen, bass guitarist Pasi Kauppinen, keyboardist and keytarist Henrik Klingenberg, and drummer Tommy Portimo. All the musicians of the band's history except Portimo also acted as backing vocalists.
Context: The band was founded by Marko Paasikoski (guitar), Jani Liimatainen (guitar) and Tommy Portimo (drums) in Kemi at the end of 1995 (Tony Kakko (vocals) and Pentti Peura (bass) joined in early 1996). Originally named Tricky Beans, they played hard rock rather than the power metal with which they grew to fame. Kakko explained that when he was invited to join the band, Paasikoski said the band was going to play "a mixture of Megadeth and Spin Doctors". During their early career, they recorded three demos which were never sent to a recording label -- Friend 'til the End, Agre Pamppers and PeaceMaker. According to Kakko, the band's first name was based on one of their early songs, which was "about a lady who was tricky and I didn't really know what I was talking about (laughs)". Their first show was about to take place but they were still unnamed, so they had to come up with something.  In 1997 the band changed their name to Tricky Means, and from that point until 1999 their style was thoroughly worked upon and ultimately was drastically changed, acquiring a strong emphasis on the keyboard melodies and relying on an easily distinguishable rhythm line maintained both by the bass and the guitar. Vocalist Tony Kakko developed a clean singing style which relies both on falsetto and tenor voices. Kakko has stated that the change of sound was influenced by fellow Finnish power metal band Stratovarius. At that time, Pentti Peura was fired and Marko Paasikoski left due to a lack of gigging. Two months later the band got signed to a three-album deal with Spinefarm, which left Marko displeased. The band finally changed their name to Sonata Arctica, because they thought they wouldn't be able to sell metal albums with the previous name and also because Spinefarm asked them to do so. "Sonata Arctica" was suggested by a friend of the band: "sonata" for the music and "arctica" for their home (Kemi, in Northern Finland).  In 1997, they recorded a demo entitled FullMoon in Kemi's Tico Tico Studios, which was their first real metal recording. The line-up consisted of vocalist and keyboardist Tony Kakko, guitarist Jani Liimatainen, new bassist Janne Kivilahti (who started first as second guitarist) and drummer Tommy Portimo. The demo was sent to Spinefarm Records by a friend of the band and a recording deal soon followed.
Question: How was the grouped formed?
Answer:
The band was founded by Marko Paasikoski (guitar), Jani Liimatainen (guitar) and Tommy Portimo (drums) in Kemi