If you are still looking https://www.amazon.com/Calvas-Speaker-Connector-Terminals-Adapters/dp/B07K9FQ3X2
These are commonly used by old-school B&O
Searching for "2 pin DIN connector" gave me this (though it's only the male side) I'm also not sure that it is the correct name for the connector (but I've seen it mentioned before... so shrug): https://www.amazon.com/Calvas-Speaker-Connector-Terminals-Adapters/dp/B07K9FQ3X2?th=1
This aliexpress link looks to give both halves: https://www.aliexpress.us/item/2251832613351157.html?gatewayAdapt=glo2usa4itemAdapt&_randl_shipto=US
Since this is just a power connector for your recliner, you might want chop it off and put a more common connector on it, like a standard DC barrel jack: https://www.amazon.com/Socket-Threaded-Connector-Adapter-Dustproof/dp/B08SJM2G52/ref=pd_lpo_3?pd_rd_w=8wZJI&content-id=amzn1.sym.116f529c-aa4d-4763-b2b6-4d614ec7dc00&pf_rd_p=116f529c-aa4d-4763-b2b6-4d614ec7dc00&pf_rd_r=ETACPDS3WS6A1BTW7ZAM&pd_rd_wg=BTahg&pd_rd_r=cd074f36-5f16-440b-8963-11ab3c8119a8&pd_rd_i=B08SJM2G52&psc=1