Complex sentence: Mrs. Chittenden devoted a great deal of her inheritance from her late husband, Henry Ward Chittenden, to the remodeling and repair of the house which was directed by her son-in-law, Henry D. Cone.
Split into simpler sentences: Mrs. Chittenden devoted a great deal of her inheritance from her late husband, Henry Ward Chittenden, to the remodeling and repair of the house. This initial renovation was directed by her son-in-law, Henry D. Cone.