Can 宁和 be used as a real name
宁和 can be used as a real Chinese name. 宁 is a common family name and 和 is totally ok for a given name.

When used as a family name, 宁 pronounced as ning4. With such pronunciation, it also can mean "rather", like 宁死不屈(rather die than surrender).

When pronounced as ning2, it means quiet/peace.

To be clear, people will say ning4和 but won't understand the name as "rather peace". Usually, this name will be considered as "quiet and peace". It is a valid name but won't have the "aspire" to peace.

All the above is for Chinese name, not quite sure if it is allowed to only have 2 characters in Japanese name.