Saint Eskil

Saint Eskil (11th century) was an Anglo-Saxon monk particularly venerated during the end of the 11th century in the province of Södermanland, Sweden. He was the founder of the first diocese of the lands surrounding Lake Mälaren, today the Diocese of Strängnäs. He is the patron saint of Södermanland and the Diocese of Strängnäs.
Saint Eskil was sent as a missionary bishop to the Lake Mälaren area by Saint Sigfrid of Växjö along with Saint Botvid and Saint David. Botvid lies buried in Botkyrka, today a suburb of Stockholm in the east of Södermanland. All three saints are known to have perished trying to Christianize the people living around Lake Mälaren and both Eskil and Botvid have been made patron saints of Södermanland County. David has been made patron saint of Västerås and the province of Västmanland. They all are sources of several medieval legends.
Saint Eskil made the village of Tuna (present day Eskilstuna) his missionary diocese and later, around 1080, he made a journey east of Tuna to Strängnäs, an Old Norse holy place. Saint Eskil was killed by being stoned and chopped up with an axe, according to tradition, because he disrupted a holy ritual. Saint Eskil's followers decided to take his corpse back to Tuna. The local tradition says that during that journey, his body was placed on the ground and that a miraculous spring gushed from that spot and started to flow out of the mountainside just outside Strängnäs. The spring is known as the Spring of Saint Eskil.
Saint Eskil was buried in his monastery in Tuna. Strängnäs was later converted to Christianity and the diocese that Eskil had created in Tuna was moved or reestablished in Strängnäs.
Veneration.
Strängnäs Cathedral was later built on the same site of the pagan ritual Eskil had observed. This is confirmed, since the hill where the cathedral now stands is known to have been the ritual site and that the first wooden church built there was dedicated to Saint Eskil. The old church and burial site of Saint Eskil in Tuna later became one of the first monasteries in the region. When Tuna received its municipal status, "Eskil" was added into the name, creating Eskilstuna.
Eskil probably lived during the reign of King Inge the Elder at the end of the 11th century. According to the source closest in time, a legend of the Danish king Saint Canute, which was authored about 1122 by Ælnoth of Canterbury, an Anglo-Saxon priest who had settled in Denmark, an "Eskillinus", an English bishop of noble origins, was killed by the "wild barbarians" (specified as the "Suethi et Gothi", i.e. Swedes and Geats) among whom he was preaching the gospel.
In its more developed form, the legend of Eskil is attested from the 13th century and known from a few different sources: according to this, he was successful in his mission during the reign of King Inge, but killed by Blot-Sweyn when trying to stop a pagan sacrifice on the hill where the Strängnäs Cathedral now stands. He is said to have been killed by stoning and with axes, and the stones later became his attribute. The legend shows stylistic influence from various sources, including the legend of Saint Olaf of Norway.
The veneration of Eskil spread in Sweden and to Denmark (Odense) and Norway (Trondheim). Eskil's feast (and purported day of death) was on 11 June, but it was later moved to June 12, except in the Diocese of Strängnäs, in order not to conflict with the Feast of Barnabas. Relics of Eskil existed in the church of Eskilstuna, which was traditionally seen as his burial place, as well as in other churches within the diocese, elsewhere in Sweden, and in Roskilde and Copenhagen in Denmark.