Bruce Picard is a pre-made deceased Sim in Roaring Heights, who is possibly a member of the Picard family, though his relationship to them is unknown. According to Picard family description, Nancy Picard is widowed. It's very likely that EA intended Bruce to be Nancy's said late husband, despite having no relation in the family tree.
His tombstone is located to Resting Meadows. He died of old age.