Complex sentence: His early years were spent in Dublin, where his father was a portrait painter, and after an abortive trip to England in the company of Francis Danby, he returned to Ireland where he worked mostly producing sketches for engravings for travel books.
Split into simpler sentences: His early years were spent in Dublin, where his father was a portrait painter. After an abortive trip to England in the company of Francis Danby, he returned to Ireland where he worked mostly producing sketches for engravings for travel books.