Similarly Shantanu's son Bhishma, after he had laid aside his weapons was killed by Arjuna with Shikhandin placed in his rear.
तथा शान्तनवो भीष्मो न्यस्तशस्त्रो निरायुधः। शिखण्डिनं पुरस्कृत्य हतो गाण्डीवधन्वना॥