Given the historical union between Philippa of Lancaster and King João I of Portugal in the late 14th century, there would have been significant communication and travel between England and Portugal. Considering this period's challenges, including the lack of modern transportation and potential political or societal barriers, I'm curious about the logistics of such travels.
How would an individual, especially of noble or royal status, travel between London and Lisbon during the 1350s?
Are there any existing manuscripts, documents, or accounts that provide an overview or description of such journeys during this time?
Any insight into this topic or direction toward relevant primary sources would be greatly appreciated.