That one is a little confusing, and it is not exactly idiomatic English. (A "from" almost always has to have a "to" connected to it. Also, you can meet somebody by a classroom but not by a class.)
I meant here the time period. When I started the story I said that Latifa went to the library and she did not want to be late; this lecture was the reason. It is Ron's lecture.
How would you change "British married teacher" to make it idiomatic English?
I may delete the nationality and say that he was married. May I say, “He was a married teacher”?