Complex sentence: His uncle Edward Joshua Cooper had died in April 1863, and having five daughters but no sons had bequeathed Markree Castle to Edward Henry, who retired from the army in July 1863.
Split into simpler sentences: His uncle Edward Joshua Cooper had died in April 1863. Having five daughters but no sons, Edward Joshua had bequeathed Markree Castle to Edward Henry, who retired from the army in July 1863.