Your description of the Rohde coat arms is all I found on the net too:
[Components of the rohde Family Name Coat of Arms The Shield is:Silver with two black three leafed clovers and a black stripe across the top. The Crest is:A naked man with a bow across his shoulders pointing at the sun. The motto is:Recte Omnia Duce Deo"]
If this is true, then it appears to be at least an English line.Personally, I like the description/look of it.
For my ROHDE line (Australia), originally from Germany, the coat of arms is different.
I don't have it in front of me at the moment, but I can describe it by memory.I'm afraid its a bit religious but coat of arms did originate from crusader times.The shield is split into quarters (can't remember the colours, maybe two blue, two green, diagonally the same)Two diagnal quaters feature three (red?) crosses.The other two diagonal quaters feature three (red?) little short horizontal bars.Overlayed in the centre of the shield is a further smaller white shield.On this smaller shield is a black hand/palm (fingers facing up), which is meant to be the hand of God.Above the shield is a knight's helmet side on view (can't remember if facing left or right).On top of the helmet is an eagle facing the same way, wings up.The eagle represents fortitude of mind.The whole thing is surrounded by decoration which represents cut & torn cloth/clothing from battle.The family motto translates as "Without the Arts, Life is Death"