There were some medieval Anglo-Iberian ties of substance in OTL (Black Prince fighting in Castille, and Anglo-Portuguese alliance), but nothing like the mutual back and forth of invasions and attempted conquests like between France and England from 1066 to the mid-1500s.
How could we have a noble in Spain (Leon, Castile, Navarre, or a predecessor kingdom) having some theoretical claim to the english throne and conquer England? Could feudal ties somehow entangle England in an equivalent of the “100 years war” Leon, or Castille?
How could we have a noble in Spain (Leon, Castile, Navarre, or a predecessor kingdom) having some theoretical claim to the english throne and conquer England? Could feudal ties somehow entangle England in an equivalent of the “100 years war” Leon, or Castille?