memorie Mairowir the said noble and potent prince and duke obleiss him that he sall no wayis dispone nor putt away ony of his lands heretages possessiones and offices present nor quhilkis he sall happen to obtene and conquies heireftir dureing the mariage fre the airis maill to be gottin betwix him & her m'tie bot yai to succeid to the same als weil as to the said dukrie of Orknay.