In reply to:

The word "of that ilk" meaning of that family.

Not quite. It was usual in Scotland to say where the family came from, for example Sir Ian McDonald of Ness. Where the place name and the person's surname were the same, then 'of that ilk' would be used. In your example, Sir Robert Redgauntlet of that ilk would mean Sir Robert Redgauntlet of Redgauntlet.

For further details see: http://www.xrefer.com/entry.jsp?xrefid=594064&secid=.-&hh=1

Bingley


Bingley