The first fully illustrated haggadah was the Prague 
1526 haggadah. This haggadah was reprinted in 1977 by Mekor and is now available for everyone at the Jewish National University Library site here. (They have other important haggadas available for viewing including some of the earliest haggadas).The Prague haggadah is filled with fascinating and important illustrations. As we have seen previously, the Prague haggadah contained nudes, which when appropriated later were removed. This included in the haggadah context as well as in other works.
Aside from these illustrations, there is an illustration of Abraham when God takes him "from the other side of the river." In the Prague haggadah we have Abraham in a row boat. However, when this was appropriated in the Mantau, 1560 haggadah, the row boat was changed into a gondola.
Also, this haggadah contains brief comments or instructions as well as the text of the haggadah. There are two which be
ar mention. The first is the passage underneath the Tam - simple - son. Typically, the simple son is understood to be less than stellar. However, in this haggadah, the verse תמים תהיה עם ה' אלקך (One should be simple with God) (Devarim 18:13). As this verse is claiming this simplemindedness is a good attribute, this seems to indicate that the simplemindedness of the son is something positive.The second passage comes in the form of an instruction. In the margin at the mention of marror the bitter herb, is the following "It is a universal custom to point at one's wife [at the mention of marror] as the verse says 'I have found the woman worse [more bitter] than death. (Kohelet 7:26)'"