<prompt> Write a continuation for this paragraph - Sandile 1823 - 1878 was n Xhosa-opperhoof. Hy is gebore naby die oosgrens in die Oos-Kaap. Omstreeks 1850 word hy opperhoof en bots met sir Harry Smith. Hy was betrokke in verskeie grensoorloë  <response>: . Hy is in 1878 oorlede. 