Continental Europe has an array of plugs that are somewhat interchangeable, provided they are ungrounded. Plugs with ground (earth) pins could be problematic.
Try googling for 'Europlug' and 'cord'. You most probably want the 2-prone (ungrounded) CEE 7/16 variety. If your daughter can wait, it might be a good idea to get it after she arrives in the Netherlands.
