Margriet Tindemans (1951-2014) was a musician, specializing in medieval music. The fourth child of Wilhelmina Coenen and Henricus Tindemans, Margriet demonstrated her musical talents early, and was named first violin in the National Youth Orchestra of the Netherlands. After Conservatory studies in Maastricht, then Brussels, Belgium, and Basel, Switzerland, she became an early member of Sequentia. She toured with that group for nine years until relocating to Seattle in 1986.