Columbia subject headings:
Harvard subject headings:
Generals--Spain--Correspondence.
Philip II, King of Spain, 1527-1598--Correspondence.
Spain--History, Military--Sources.
Spain--History, Naval--16th century--Sources.
Spain--Kings and rulers--Correspondence.
Valdés, Pedro de, 1544-1615--Correspondence.
Princeton subject headings:
Generals--Spain--Correspondence.
Philip II, King of Spain, 1527-1598--Correspondence.
Spain--History, Military--Sources.
Spain--History, Naval--16th century--Sources.
Spain--Kings and rulers--Correspondence.
Valdés, Pedro de, 1544-1615--Correspondence.