Who is this man?
What is his connection with her?
A lover's--of course.

No one but a lover would gaze up at a window on a moonlight night." And it was at this moment that Zara opened the window and, for a second, both men saw her slender, rounded figure standing out sharply against the ground of the room.

Then she turned, and put out the light.
A murderous passion of rage filled Lord Tancred's heart.
He looked at Mimo and saw that the man's lips were muttering a prayer, and that he had drawn a little silver crucifix from his coat pocket, and, also, that he was unconscious of any surroundings, for his face was rapt; and he stepped close to him and heard him murmur, in his well-pronounced English, "Mary, Mother of God, pray for her, and bring her happiness!" And his common sense reassured him somewhat.

If the man were a lover, he could not pray so, on this, the night before her wedding to another.

It was not in human, male nature, he felt, to do such an unselfish thing as that.
Then Mimo raised his soft felt hat in his rather dramatic way to the window, and walked up the street.
And Tristram, a prey to all sorts of conflicting emotions, went back into the Park.
* * * * * It seemed to Francis Markrute that more than half the nobility of England had assembled in St.George's, Hanover Square, next day, as, with the beautiful bride on his arm, he walked up the church.
She wore a gown of dead white velvet, and her face looked the same shade, under the shadow of a wonderful picture creation, of black velvet and feathers, in the way of a hat.
The only jewels she had on were the magnificent pearls which were her uncle's gift.