Complex sentence: He wished for her to be brought up Catholic and not marry an Englishman, and made arrangements for her to inherit 5,000 lira upon marriage, or when she reached the age of 21, provided she did not marry a native of Britain.
Split into simpler sentences: He wished for her to be brought up Catholic and not marry an Englishman. He made arrangements for her to inherit 5,000 lira upon marriage, or when she reached the age of 21, provided she did not marry a native of Britain.