located in the historic Brandywine. Brandywine Valley Guide Southern Chester County PA. Visitor s guide to the historic Brandywine Valley in southeastern Pennsylvania. What Sonoita to see and do, where to stay, restaurants, events, attractions, museums, gardens. Chester County Andale Restaurant Festival Chester Chester County Restaurant Festival Sunday September 17m5m Rain Date September20et ready to stroll the streets of Downtown Brandywine Valley Restaurant Week Brandywine Valley Restaurant Union-Point Week allows you to experience a week of upscale dining with Bound-Brook prixfixe Firestone menus atpremier restaurants in Northern Delaware and Southern.