Latin errors 'could nullify resignation'.
The Rev Andrew Lenox-Conygham. (twice blessed by Popes, favourite reading Medieval Latin Poetry) has a typically quirkish view of Benedict's resignation.
"I don't think he has retired in the strictly canonical sense", he says. "I pored over the Latin speech he made to tell his cardinals he was going, but the Pope - sorry, now Emeritus Benedict XVI - made several schoolboy howlers in his Latin grammar.
"Pedants like me argue this could nullify the resignation.
"If there's Latin enthusiasts reading this I'll be happy to explain my misgivings".
Not that Andrew wants to carp. After studying at Oxford and Cambridge, he became a student at Heidelberg University, where a certain Josef Ratzinger (late Benedict) enthralled him with lectures on the vicar's hero, St Augustine of Hippo. "He was totally brilliant", he recalls. "Totally brilliant.
"The Papacy is the world's greatest Christian power - and I consider myself an honorary Roman Catholic".
And if Great Colmore Street on which St Luke's stands, seems an unlikely habitat for so erudite a chap well, he remains a guest lecturer at his old Cambridge college.
"Of course I'm praying for the Catholic Church", he says. "You didn't have to ask that, surely?"
Rev Andrew Lenox-Conygham.