Which preposition to use with interesse

in Occurrences 1%

hir ma'tie in tyme to cum eftir the completing and solemnization of the said mariage other of gifts dispositiones graces privileges or vtheris sic thingis quhatsumevir sal be alsua subscrivit be the said noble prince and duke for his interesse in signe and taken of his consent and assent y'rto as her ma'ties husband.

Which preposition to use with  interesse