 Among other things, he has been credited by modern historians as "the founder of the burgh of Glasgow and initiator of the Glasgow fair", as well as being one of the greatest literary patrons in medieval Scotland, commissioning the "Life of St Waltheof", the "Life of St Kentigern" and the "Chronicle of Melrose".Jocelin and his family probably came from the south-east of Scotland.The names of neither his father nor his mother are known, but he had two known brothers, with the names Helia and Henry, and a cousin, also called Helia.