Questions & Answers about Ella es de México y él es de Colombia.
Do I have to include ella and él, or can I just drop them?
You can often drop subject pronouns in Spanish. However, because both "she" and "he" use the exact same verb form (es), dropping them here would leave us with "es de México y es de Colombia". That translates to "is from Mexico and is from Colombia", and we wouldn't know who is from where! Using ella and él keeps the sentence clear and contrasts the two people.
Why does él have an accent mark?
The accent mark distinguishes él (meaning "he") from el (meaning "the"). They sound exactly the same when spoken, so the accent is only there in writing to help you tell them apart.
Why do both "he" and "she" use the same word, es, for "is"?
How exactly does the phrase es de work here?