Take the following as truth: A new alliance with England was sealed in the 1386 Treaty of Windsor; a year later Joao of Avis married Philippa of Lancaster, the daughter of John of Gaunt.
Then the following statement: "A new alliance was formed with England in the 1386 Treaty of Windsor just one year before Joao of Avis married Philippa of Lancaster." is true, false, or inconclusive?
Answer: True