Re: LINEAGE FOR SURNAME GUICHARD
Guichard is from the Germanic name Wīghard, from wīg ‘battle’ (and not 'warrior') and hard ‘hard, strong’. You'll find the distribution of the name in France at tinyurl.com/jjvr8wr, in Canada at tinyurl.com/zp6c35u, and in the US at tinyurl.com/zk6xpm8.