Help with tie choice

I’m having a little difficulty deciding what tie I should wear for a meeting I’ve got coming up. Normally I’d just wear my everyday tie but this meeting is at the House of Lords (even though it is called a house I don’t think they all live there, but I will check) and I think maybe I should wear something a bit extraordinary. I’ve narrowed it down to two choices; the first is my very formal black bow tie and the second is my (newly made by caroline) Union Jack bow tie, I thought this would be quite appropriate except I don’t want to look like a souvenir! I could always wear my red velvet tie, that is quite grand. I wonder if all the Lords and Ladies have this much difficulty getting dressed when they go into work each day?!