Translation:

My lord Julian,
I write simply to bid you a safe journey, and to disclose my satisfaction in my betrothal. It is more than I could have ever hoped to find myself in the care of someone so similar to myself.
It is my understanding that it is customary for a couple awaiting their marriage to exchange gifts. Thus, a wagon containing part of Father's literature collection is on its way to you. My aim is to convince Katherine that the entire library would be better off with you; however, my lady is proving difficult. I feel ashamed to say that I don't wish her presence at our wedding.
Enough of such gloomy thoughts. I have gotten far in our beloved Canterbury, and have read your Franklin's tale. I agree that it is one of the better installments in the novel; the man is brilliant in his satire. Also, there is a new foal in our stables and Aelf has promised to let me watch them train him. I do enjoy horses so very much; it would give me joy to ride with you once I arrive. (I know you dislike the creatures, never worry- I shall do something I dislike for your sake in return).
Lady Katherine has just sent a maid in with a bolt of pink fabric. I highly suspect that she is developing a pink wedding gown so I will look uglier than her on my wedding day, and beg you to save me. Choose the color (not pink!) you would like to wed me in, and if I show her the letter, she will have it made. My aim is to please you anyway.
I'm sorry if this letter is dull; my family is insufferable and I have nothing else to talk about. I'd rather hear about you. Tell me about Roma, and your family, and Newbury. Tell me about yourself. Eagerly waiting for your response,
YOUR
Elena.

((Ten points if you guess what IRL person this font belongs to. And a cookie)).