Complex sentence: They had one son, Simon de Beauchamp II. Countess Rohese was widowed a second time in 1155 or 1156 and gained the guardianship of her minor son.
Split into simpler sentences: They had one son, Simon de Beauchamp II. The countess was widowed a second time in 1155 or 1156. She gained the guardianship of her minor son.