2nd and 3rd appears to be azure (if the lines are hatching) a fire-beacon (?) on a mount of six peaks/coupeaux (in French: un mont de six coupeaux; in Spanish: una montaña de seis picos; in German: ein Sechsberg; in Italian: un monte di sei cime). The fire-beacon identification is very "iffy". A beacon or lighthouse is logícal for a prominent place, the lines pointing down and diagonally might be rays emanating from the beacon, but is the central part a beacon or perhaps something else? Heraldic mountains are, not surprisingly, very common throughout continental Europe, both for municipal and personal arms. No less than 719 assorted mountains, some realistic, some heraldic (but few of six peaks) can be found on Wiki:
http://commons.wikimedia.org/w/index.ph ... gory-media As to 1st and 4th I am completely mystified.
Could we have a better picture?