December 9 ,  at three-quarters past 11 in the evening [St. Petersburg]
The good moments we spent together have left me the sweetest impression. The dear children's humor was particularly sparkling, and they were enchanted to find their old toys again. You saw how dear Pupussia suddenly came to me and kissed me, with both his arms around my neck, and Oly of course had to imitate him. Their tenderness is my joy. May God keep them safely for us, as well as dear baby [Katia Jr.], and may He not forsake us in the future.-- I confess that I have some misgivings about the fatigues of tomorrow, and
above all the Archbishop's Mass which will follow the christening. I love you, my dear Angel, and kiss you
tenderly. I hope that at last you will spend a better night.
December 10 ,  at three-quarters past 9 in the morning
Good morning, dear Angel of my soul, I slept well and everything in me overflows with love and tenderness for you. Today it is exactly a year since my return from the war, the result of which was the birth of our dear baby, exactly 9 months less a day, afterwards. Oh, oh, oh-- did you see? May God keep her for us, as well as our two dear eldest, and continue to watch over us. I have to get back to my work. I embrace you tenderly and am happy that you are mine, and I
January 8 , 1879 at three-quarters past 11 in the evening
I am still all saturated with our delicious bingerles of a little while ago. It was so good I wanted to cry out, and I slept so particularly well afterwards. The children's appetites were very good and their humor sparkling as always, but dear Pupussia [their son George] was afraid I would make fun of his Hussar costume with the short pants. It's priceless how sensitive he is, and along with that the nice thing about the child is that he is real. May God develop in him all his good qualities and keep him for us, as well as his sisters, and may He not forsake us in the future. I love you, dear Angel, and kiss you tenderly.
January 9 , 
at 10 in the morning
Good morning, dear Angel of my soul, I slept very well and everything in me overflows with love and tenderness for you…. It is time to go to work. I embrace you tenderly, and am happy that you are mine, and I
January 10 , at 10 in the morning
Good morning, dear Angel of my soul, I slept well. General Ryleev told me the children had slept calmly. God grant they feel better. The cold is decreasing, and there is no wind at present. It is time to get to work. I embrace you and am happy that you are mine, and I
May God not forsake us, and bestow His Blessings on us!
Alexander II's mistress, Catherine (Katia)Dolgorukova, to Alexander. It is worth noting that far more of his letters to her survive than hers to him, and his tend to be longer.
May 7 ,  at 11 o'clock in the morning
Good morning, dear angel, I love you and everything in me is overflowing terribly. I slept well, and am only waiting for the moment of seeing you again. May God bless you and come to our aid. I love you. Yours forever
Catherine remained devoted to AII spending most of her time taking care of him and (unusually among imperial mistresses)not seeking power for herself or her family. Catherine was ecstatic about their marriage, and here are reproduced three letters she wrote to the Tsar--the first two on July 5th, 1880, the day before the wedding, and the third on the 6th, their wedding day.
... Thank you again for all you have done for me during these 14 years of happiness. I want to express my gratitude to you in the last letter you will receive from me before we become husband and wife before God and all men...
You must understand what will take place in me at the moment of being pronounced your wife, and what a joy it is to become the wife of the man you have madly loved for 14 years, and this gives us our only happiness on this earth!... I love you, I am madly in love with you.
At last the long-awaited day is here, and I hope that in a few hours God will bestow His blessings on us and will preserve us. Thank you once again for everything, and do not forget that nobody in this world is as
beloved as you are. Oh, how happy I will be in a few hours, you will become my protector in the eyes of the law, and nobody will be able to separate us, and we shall be one forever, as we have been for 14 years. I love you. Yours forever. I am waiting for you to come and be kissed...