The letter reads:
"His Excellency Mr Ilham Aliyev, President of the Republic of Azerbaijan
On behalf of the government and people of Spain, I wish to send to Your Excellency my sincerest congratulations on the occasion of the celebration of the national day of the Republic of Azerbaijan.
Mr President, taking this opportunity, I wish you the best of health, and the friendly people of Azerbaijan peace and tranquility.
Please accept the assurances of my highest consideration and esteem.
King of Spain"