I have a main website example.com and another website subsidary.com. The subsidary.com website is to be phased out and redirects put in place.
subsidary.com will have its A record repointed to example.com and a domain added in cPanel for example.com
Most of the entries in htaccess are straightforward, of the form
Redirect 301 /old-page-1 https://example.com/new-page-1
Redirect 301 /old-page-2 https://example.com/new-page-2
Redirect 301 /old-page-3 https://example.com/new-page-1
...
where old-page-1, 2 and 3 do not exist as URLs on the new site
So far, so good. My problem is that I need to direct the home page of the old site to a specific page on the new site.
Obviously I can't do
Redirect 301 / https://example.com/new-landing-page-subsidary-com
How do I target the old URL so that someone requesting https://subsidary.com is correctly redirected to https://example.com/new-landing-page-subsidary-com