Instagram/Mary Kate Robertson & Joh Celebrity John Luke & Mary Kate Robertson welcome twin daughters Sylvie & Francie. See the first photos and read their joyful announcement. March 26, 2026 AceShowbiz - John Luke Robertson and Mary Kate Robertson have joyfully announced the arrival of their twins, marking the birth of their fourth and fifth children together. The couple revealed that their daughters, Sylvie and Francie, were born on February 24, 2026, bringing immense happiness to their growing family.