What is another name for London Pride?

There may be several, but try None-so-petty.
http://www.shootgardening.co.uk/sitePlant.php?plantid=2035&name=saxifraga-x-urbium  

Answer

There are several altenate names, including St. Patrick's Cabbage, Whimsey, Prattling Parnell, and Look Up And Kiss Me.
As well as none-so-pretty, I`ve heared it called Nancy Pretty