 Lamberton appears to have been a very odd choice for a Bishop as he was very young at the time.However, according to Scottish historian Geoffrey Barrow Lamberton landed the position of Bishop due to then Guardian William Wallace who saw Lamberton as a potential ally and supporter of Independence, likely due to Lamberton's close ties with Bishop Wishart, who was a staunch supporter of Independence.St Andrews was then the wealthiest and most powerful See in Scotland catapulting Lamberton straight into the highest circles in Scotland.