Today, the new Prime Minister Theresa May makes her first diplomatic trip to meet her counterparts in Germany and France.  Here Dr Simon Payling, Senior Fellow of the Commons 1422-1504 section, blogs about parliament’s reaction to another major realignment in European relations, although in very different circumstances, Henry V’s attempt to unify the crowns of England and France in 1420… On 21 May 1420 Henry … Continue reading European diplomacy: the ‘double monarchy’ of England and France envisaged in the treaty of Troyes of 1420