fleur de lis

In the Hofkalendar by Gotha, a listing of royal and noble families of Europe, the Froebel family is listed with Silesia as the land of medieval origin and the annotation that it was a family "noble by decree." At the time of the Reformation the Froebel family moved to Thuringia.

The Froebel coat of arms is royal blue with three gold fleur de lis pointing towards the upper left corner between two gold diagonal bands. In heraldry, blue (azure) represents truth and loyalty and gold (or) generosity and elevation of the mind.

The fleur de lis represents the yellow flag (Iris Pseudacorus) the native wild iris of Europe, which grows in marshes. The bright yellow, large flowers bloom from June to September across Europe, Western Asia and North Africa. One of the names for the yellow flag is liesch, which appeared in many forms in the Middle Ages and in dialects: lisch, lüsch, lies, liesz, liesze, lieyes, leys.

According to legend Clovis (c.466-511 AD), King of the Franks, being trapped between the Gothic army and the Rhine, noticed yellow flags growing out into the river, signifying that it was safe to ford the river at this point. He crossed in safety with his army, and because of this incident adopted the fleur de lis as his emblem.

An interesting explanation of the origin of "fleur de lis" or "fleur de lys" is that is signifies fleur de Louis. Up to the time of Louis VII the kings of that name (identical with Clovis) called themselves, and signed themselves Loys. Even after the name had settled into its present form, Loys was still the signature of the kings of France up to the time of Louis XIII (1610-43).

Irises are natives of Europe, North Africa, and the temperate regions of Asia and America; most of the species have tuberous roots, sword-shaped leaves, and showy flowers. Irises have six petals, the erect inner ones called standards and the usually drooping outer ones called falls. Irises include some of the world's most popular and varied garden flowers, centred in the North Temperate Zones. Some of its most handsome species, however, are native to the Mediterranean and central Asian areas. It is a popular subject of Japanese flower arrangement, and it is also the source of orrisroot, from which "essence of violet" perfume is made.

consider the lilies of the field, they neither spin nor weave, yet even Solomon in all his glory was not attired as one of these
Luke 12:27

The lilies of the field of the Bible are the yellow flag or Iris Pseudacorus, which was also the emblem for Mary.