The Priory of St Mary was founded by Bertram de Bulmer in 1158 as a joint house of monks and nuns at Marton .
By 1167 the nuns had moved to Marton .
The Priory of St Mary was founded by Bertram de Bulmer in 1158 as a joint house of monks and nuns at Marton , although by 1167 the nuns had moved to Moxby .