Certain propositions sent by the States of Holland, to the lords embassadors of the common-wealth of England: : wherein, they desire, that the ancient amity may be continued between both states; and that they may be aiding and assisting to each other, against all persons whatsoever, that shall be disturbant to them. Also, a discovery of several plots of divers English and Scotch Cavaliers; and their intentions to murther the Lord St John, Mr Fairfax, and young Dorislaus. With, the States of Hollands message to the Queen of Bohemia; concerning the uncivil behaviour of her son, Prince Edward, towards the lords embassadours and their followers: and the States Order he should be tried by a court of justice. Together with an exact diurnal of each days progress and preceedings, from the last of March, to the sixth of April. 1651. Published according to order.