I forgot to include the following sentences for you to check.

Thank you very much in advance.

1) The Black Death was caused by unhealthy living conditions, lack of sanitation and, above all, by fleas living on black rats which infested the ships travelling with Europe.
2) It (the black death) brought about very high mortality rate, shortage of labour, rise in wages and fall in prices. The conditions of peasants got better since they were able to demand payment for their work on their lord's lands.
3) One of the reason for growing anticlericalims was the wardships of many orphans to the advantage of the monasteries (can you help me rephrase this?)

) The Black Death was caused by unhealthy living conditions, lack of sanitation, and, above all, by fleas living on black rats which infested the ships traveling throughout Europe.

2) It brought about very high mortality rate, shortage of labour, rise in wages and fall in prices. The living and working conditions of peasants improved because they were able to demand payment for their work on their lord's lands.

3) One of the reasons for the increase in anti-clericalism was because the monasteries were taking custody of many orphans.

Certainly! Here are the revised versions of the sentences you provided:

1) The Black Death was primarily caused by unsanitary living conditions, lack of sanitation, and the presence of fleas on black rats that infested ships traveling to Europe.
To find this information, you can research the causes of the Black Death, specifically focusing on unhealthy living conditions, sanitation practices during that time, and the role of fleas and rats in spreading the disease.

2) The Black Death resulted in a significant increase in mortality rates, a shortage of labor, and fluctuations in wages and prices. As a consequence, the condition of peasants improved as they were able to negotiate payment for their work on their lord's lands.
To verify these details, you can study the historical impact of the Black Death, such as its effects on population, the labor market, and the economic and social conditions of peasants during that period.

3) One reason for the rise in anticlericalism was the practice of assigning guardianship of many orphaned children to monasteries, which benefited the monastic institutions.
To rephrase this sentence, you could say, "The rise in anticlericalism was partly influenced by the favored placement of many orphaned children in monasteries through guardianship arrangements."
To understand more about this topic, you can research the factors contributing to the increase in anticlericalism, including the placement of orphaned children under the care of monasteries during that time.