Lucius

[verosomm]

Exactly.  And since the gang here was in their fifth year, Lucius 
would have already left the school (according to the official 
timeline, Lucius starts his 7th and final year the year the Snape, 
Lily and Marauders are only starting their 1st).  This can be 
further concluded with the fact that James and Lily, had they lived, 
would have been 35, turning 36, during OoTP and Lucius is stated as 
being 41 (turning 42, presumably) which is 6 years older.

Veronica

> The only time Lucius' age is mentioned is
> OotP, when the Daily Prophet states his age
> at 41, which means he was at school with the
> gang and Snape even if not in the same year.
> 
> Saitaina