Scottish Conservative leader Ruth Davidson has given birth to a baby boy.
The MSP and partner Jen Wilson said they were "delighted" by the safe arrival of Finn Paul Davidson at Edinburgh Royal Infirmary on Friday morning, weighing in at 10lb 1.5oz.
The couple, who live in the Scottish capital, announced earlier this year that an IVF procedure had been successful.
Ms Davidson, 39, has been on maternity leave since the Scottish Parliament's October recess.
She said: "Jen and I are delighted at baby Finn's safe arrival. A huge thank you to the medical team at the ERI and the midwives at Leith Community Treatment Centre for looking after all three of us so well throughout the pregnancy and birth.
"I can't wait to get this little one home to enjoy some family time together."
Ms Wilson added: "It was wonderful to welcome baby Finn into the world this morning. He is beautiful and already very loved.
"Ruth did brilliantly and Finn clearly has his mother's lungs on him!"
Ms Davidson posted a picture on Twitter of the couple with Finn and wrote: "Welcome to the world, little one. Know that you are loved".
Hundreds of people, including many politicians, congratulated the family on the arrival.
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First Minister Nicola Sturgeon posted: "Many congratulations to you both. I wish wee Finn a lifetime of happiness."
Andrea Leadsom, leader of the House of Commons, posted: "Welcome to the world baby Finn! What wonderful news - huge congratulations @RuthDavidsonMSP and Jen xx."
Scottish Labour MEP Catherine Stihler wrote: "Congratulations! Finn will change your world. Enjoy every moment because they grow up fast."
The couple, who have been together since 2014, plan to share maternity leave, with Ms Davidson's deputy Jackson Carlaw holding the fort until her return to work.
Although her personal popularity and electoral success have seen her frequently tipped as a future leader of the UK party, Ms Davidson has ruled out ever taking on the job.
The Scottish Tory leader previously said starting a family would not change her political commitment or her plans to lead the party into the 2021 Holyrood elections.