Complex sentence: The Oude Meester Foundation for the Performing Arts, which was formed following the merger of Stellenbosch Farmers' Winery and Distillers Corporation into Distell, then became the sponsor of the awards, renaming them the Fleur du Cap Theatre Awards.
Split into simpler sentences: The Oude Meester Foundation for the Performing Arts was formed following the merger of Stellenbosch Farmers' Winery and Distillers Corporation into Distell. The foundation became the sponsor of the awards, renaming them the Fleur du Cap Theatre Awards.