Despite being born without arms or hands, he became known for his skills as a painter and calligrapher, using his feet to create his art.

[citation needed] Nevertheless, he learned not only to master everyday tasks like washing and dressing himself, but also to write, by using his feet.

In 1570, he met both Kaiser Maximilian II and Prince-elector August of Saxony, and impressed them with his work.

In 1584, Schweicker was invited to perform at court in Heidelberg, where he stayed until 1598, primarily working as a painter.

He had self-prepared death certificate, crafted a decade earlier, along with a portrayal of him at work, continue to be exhibited there.