Pope Saint Linus' papacy lasted nine years from 67 AD to 76 AD.
Pope St. Anacletus (Cletus) (76-88) followed Linus.
He served for 26 years as the pope.
Pope Benedict XVI was pope from 2005 and retired in 2013. (7 years, 315 days)
To the best of our knowledge Pope Linus, the second pope after Saint Peter, was not a martyr. However, this is uncertain as no verifiable information about his death is to be found.
There has never been a Welsh pope but there has been one pope from England - Nicholas Breakspear who took the name of Pope Adrian IV. The mother of Linus the first pope after St. Peter was Welsh, that makes him half Welsh.
The dates are uncertain but he was chosen pope in either the year 64 or 67 and died on either 76 or 79.
There was no delay. Pope Linus took office soon after the death of St. Peter.
Benedict XV served as pope for 7 years and 141 days.
Before the resignation of Pope Benedict XVI the last pope to do so was Pope Gregory XII who resigned on July 4, 1415, - nearly 600 years ago.
The last pope from Africa was Pope Gelasius I, the African, March 1, 492 to November 21, 496; the 49th Pope. That is a bit over 1500 years.
Linus is believed to have been the successor of Saint Peter.
He was pope nearly 25 years.