Meanwhile , Margaret 's niece Gertrude had married Forming_relationships Roman Danylovich , son of King Daniel of Galicia and relative of the Árpád dynasty .

In November 1677 , William of Orange married Forming_relationships his cousin Mary , niece to Charles II of England and England agreed Agree_or_refuse_to_act a defensive alliance with the Dutch in March 1678 .

Robert Stewart , Duke of Albany , Regent of Scotland , had taken Getting control Control of the earldom as guardian of his niece Euphemia Leslie .