I chose DTD1s name because it is the middle name of my mother. She die when I was sixteen. DH chose her middle name as it means Life in his language, and she was borne its a heart defect and was resuscitated three times, on a ventilator, had surgery at seven days. And more surgery at three weeks. And we were told when she was nine days old, she'd need an aortic valve transplant in the future (she do). So it was kind of hopeful. He speaks a very minority language, so not Zoe or anything. She is now fine and her heart is perfect!
DH chose DTD2's name because it has a beautiful meaning of a certain flower which his sister was named after. Her name is the Swedish name (I'm Swedish) but shares the same meaning as that of his sister. His sister was at the time battling cancer, thankfully she survived to see her kind of namesake. I chose her middle name because it was pretty, just that.
DD3's name means Hope in my minority language. I speak Swedish and a Sami (native Laplander language) too where there are only about 800 fluent speakers (including me) alive, and is the language of my father. He died when I was four, I lost both my parents at an early age. We chose it because the scans showed a defect which meant that she would probably be born with a sever disability, mentally and physically, which was only found out after we had a scan at 25wks because they had concerns over the pregnancy (after I reported some things happening). She does have a very very very mild one, but nothing like predicted and she goes to a mainstream school, so we are lucky! Her name definitely came true.
DH chose her two middle names. The first is an English name which he thinks is beautiful, the second is the name of the nurse who was with us mainly in NICU and who was lovely. We'd planned to give her just one middle name, but it didn't turn out that way!
DS got one family name. It's also very much about my heritage. My father is a Sami Swedish, and my mum lived in Lapland Sweden from nine, but she was originally from Denmark and was Danish Jewish and escaped in the war from Denmark. It's the name of my grandfather and my uncle (who I never met as he died at thirty when I was about two) and so on and it makes me feel connected to my mum's past. It's Benjamin so no one would guess that it had that meaning behind it though! He has two middle names, one is just a handsome Old Testment name, the other is the name of my step dad and is an English name. DH chose the Old Testament name and was the one who suggested my step dad's name.i wanted to call him that BT wasn't sure.
Should add, the foreign names, the Swedish ones/Sami ones work because until seven years ago we lived in Sweden with them all!
One of my friends called their son after the hotel they were in when he was conceived 
it's a great name, but he's only small now, when he starts asking questions they're going to have trouble explaining!