Router to router then wireless?

I have an orange livebox router which recieves internet, but my parents who live next door want to use my internet to connect also. What i have done is set up an ethernet cable that goes from my router direct into their pc. It works and it works well. However, if i wanted to set up wireless in their home is there a... show more I have an orange livebox router which recieves internet, but my parents who live next door want to use my internet to connect also. What i have done is set up an ethernet cable that goes from my router direct into their pc. It works and it works well. However, if i wanted to set up wireless in their home is there a way i can set that up by having an ethernet going into a new router and then sending that signal around their home?

I want it to work like this:
Router 1 (wireless) --> Ethernet Cable --> Router 2 (Wireless)
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