Walter Mauclerk
Another kinsman, possibly a nephew, Robert Barri was named prior of Carlisle Cathedral while Walter was bishop.[2] He served King John of England in Rome as an envoy to Pope Innocent III in 1214 where he was expected to neutralise any baronial agents that might be sent.This was a side effect of the fall from power of Hubert de Burgh during King Henry III's reign.[8] However, with the fall from power of Peter des Roches Walter returned to royal service.In 1235 he was once more in charge of an embassy attempting to find a bride for King Henry, this time to Flanders for a daughter of the count of Ponthieu.