Complex sentence: Annie Elizabeth Fredericka Horniman CH (3 October 1860--6 August 1937) was a member of the Horniman Tea family who founded the Abbey Theatre in Dublin and the Gaeity Theatre in Manchester, which was the first repertory theatre in the country.
Split into simpler sentences: Annie Elizabeth Fredericka Horniman CH (3 October 1860--6 August 1937) was a member of the Horniman Tea family. She founded the Abbey Theatre in Dublin and the Gaeity Theatre in Manchester, which was the first repertory theatre in the country.