Rancho Grande was the name of a large ranch owned by Abel Head 'Shanghei" Pierce and his brother Jonothan E. Pierce down on the Tres Palacious River in South-Central Texas. This was and still is in Matagorda County and Wharton County and dates back to the days in mid-nineteenth century. However, there were many grande ranchos in those times. I won't but,old Shang would claim that song in a heartbeat.