Isabel's Planned Marriage

I mentioned yesterday the links between the three men who hatched the Southampton Plot to assassinate Henry V and put Edmund Mortimer on the throne. Two of the men made a close tie with each other through the arranged marriage of their children. Richard of Conisburgh, 3rd Earl of Cambridge, had a daughter, Isabel. Isabel of Cambridge (1409 - 1484) was arranged to be married to Sir Thomas Grey. Her…