"I am the son of Mrs. Francis and I am very happy."
Here's why:
* Je suis le fils de Mdme Francis: This part translates directly to "I am the son of Mrs. Francis."
* Tres content: This translates to "very happy."
The original phrase uses "fis" instead of "fils," which is a minor spelling error in French.
This sentence is quite basic and doesn't have a lot of context. It could be said in many different situations.