One of the things I like about London is the collection of weird little streets and alleyways with their strange names in the old city.
French Ordinary Court was first mentioned on maps in 1677 and "ordinary" in this context refers to a meal provided at a fixed time and price in a tavern or public house. So it's likely that there was a tavern close by with a name that was somehow connected to France that offered this kind of meal. It has been gone for centuries but the alleyway remains.
Have a good weekend all.