Given the question: Information: - Welsh law is the primary and secondary legislation generated by the National Assembly for Wales, according to devolved authority granted in the Government of Wales Act 2006. Each piece of Welsh legislation is known as an Act of the Assembly. The first Assembly legislation to be officially proposed was called the NHS Redress (Wales) Measure 2008. These powers have been effective since May 2007. It is the first time in almost 500 years that Wales has had its own laws, since "Cyfraith Hywel", a version of Celtic law, was abolished and replaced by English law through the Laws in Wales Acts, passed between 1535 and 1542 by King HenryVIII. - Powys Wenwynwyn or Powys Cyfeiliog was a Welsh kingdom which existed during the high middle ages. The realm was the southern portion of the former princely state of Powys which split following the death of Madog ap Maredudd of Powys in 1160: the northern portion (Maelor) went to Gruffydd Maelor and eventually became known as Powys Fadog; while the southern portion (Cyfeiliog) going to Owain Cyfeiliog and becoming known, eventually, as Powys Wenwynwyn after Prince Gwenwynwyn ab Owain, its second ruler. - Gruffydd Maelor (died 1191) was Prince of Powys Fadog in Wales. - Madog ap Maredudd (died 1160) was the last Prince of the entire Kingdom of Powys, Wales and for a time held the Fitzalan Lordship of Oswestry. - Owain ap Gruffydd (c. 11301197) was a prince of the southern part of Powys and a poet. He is usually known as Owain Cyfeiliog to distinguish him from other rulers named Owain, particularly his contemporary, Owain ap Gruffydd of Gwynedd, who is known as Owain Gwynedd. - Maelor is a border area of north-east Wales and north-west England, now entirely part of Wrexham County Borough. - Powys Fadog was the northern portion of the former princely realm of Powys, which split in two following the death of Madog ap Maredudd in 1160. The realm was divided under Welsh law, with Madog's nephew Owain Cyfeiliog inheriting the south (see Powys Wenwynwyn) and his son Gruffydd Maelor I, who inherited the north. - Gruffudd Fychan I , Prince of Powys Fadog from 1277 to 1284 , was the youngest of the four sons of Gruffudd ap Madog , Lord of Dinas Bran . On his father 's death in 1269 ( or 1270 ) his share was Ial and Edeirnion , which included Glyn Dyfrdwy . He was aligned to Llywelyn ap Gruffudd , Prince of Wales , in the war of 1277 . In the peace treaty , it was agreed that he would do homage to Llywelyn for Edeirnion , but to Edward I of England for Ial . He again fought alongside Llywelyn during the war of 1282 -- 1283 , and lost his lands with his defeat . Nevertheless , the Earl of Surrey persuaded the king to allow him possession of his lands , which he held from the king as a tenant at will for the rest of his life . He died in 1289 leaving a young son , Madog Crypl . What is the relationship between 'gruffudd fychan i' and 'gruffydd'?
The answer is:
given name