Hi Brian I have never come across anyone in the UK using the term Grand in any relationship but Grandfather or Grandmother, never Uncle or Aunt Some years ago whenever I came across this expression "grand uncle" it really grated on my ears however when I looked into it I found it was an English usage that was exported to the colonies and then fell out of use here Much of the available family tree software is written in America for Americans, hence the Grand Uncle etc I find the majority who use Grand Uncle or Aunt are of US origin, a few from Australia / New Zealand / Canada So its just terminology that means the same thing in different places Grand Uncle = Great Uncle Great Grand Uncle = Great Great Uncle It still doesn't sound right to my ears :-) Nivard Ovington in Cornwall (UK) > My (Suffolk!) great grandfather's brother is my g.g.uncle. Is this great > granduncle? > > My 6 x great grandfather's brother is my 7 x g. uncle. Is this 7 x > granduncle? Why is it not 6 x great granduncle? > > Perhaps it depends on how the family tree software is set up and maybe UK > and USA differences come in here. > > Grandfather is usually one word but granduncle is often two. > Professional genealogists have probably got this all buttoned up but I > haven't!